diff --git a/sdk/iothub/azure-mgmt-iothub/_meta.json b/sdk/iothub/azure-mgmt-iothub/_meta.json
index 89e810bfbd5e..dd4e7ee4b1f0 100644
--- a/sdk/iothub/azure-mgmt-iothub/_meta.json
+++ b/sdk/iothub/azure-mgmt-iothub/_meta.json
@@ -1,11 +1,26 @@
 {
-  "commit": "396209531039d3e211cb1ec0982606dbbdf64ac2",
+  "commit": "c268b7b1a60779900f77d8d5bcb141ff35c797fb",
   "repository_url": "https://github.com/Azure/azure-rest-api-specs",
-  "autorest": "3.9.2",
+  "autorest": "3.9.7",
   "use": [
-    "@autorest/python@6.4.3",
-    "@autorest/modelerfour@4.24.3"
+    "@autorest/python@6.7.1",
+    "@autorest/modelerfour@4.26.2"
   ],
-  "autorest_command": "autorest specification/iothub/resource-manager/readme.md --generate-sample=True --include-x-ms-examples-original-file=True --python --python-sdks-folder=/home/vsts/work/1/azure-sdk-for-python/sdk --use=@autorest/python@6.4.3 --use=@autorest/modelerfour@4.24.3 --version=3.9.2 --version-tolerant=False",
-  "readme": "specification/iothub/resource-manager/readme.md"
+  "autorest_command": "autorest specification/iothub/resource-manager/readme.md --generate-sample=True --include-x-ms-examples-original-file=True --python --python-sdks-folder=/mnt/vss/_work/1/s/azure-sdk-for-python/sdk --use=@autorest/python@6.7.1 --use=@autorest/modelerfour@4.26.2 --version=3.9.7 --version-tolerant=False",
+  "readme": "specification/iothub/resource-manager/readme.md",
+  "package-preview-2022-11": "2023-03-14 21:37:19 -0700 7e5861ad01a796a72617080e89e42f428e66242e Microsoft.Devices/preview/2022-11-15-preview/iothub.json",
+  "package-preview-2022-04-30": "2022-08-09 20:31:29 -0700 1f75c8b5d3f55387d6e07e7f2f879a88f529180d Microsoft.Devices/preview/2022-04-30-preview/iothub.json",
+  "package-2021-07-02": "2023-01-27 19:16:47 -0800 0b0f8d5b088da606ffbb8b2828dc366982f106e5 Microsoft.Devices/stable/2021-07-02/iothub.json",
+  "package-2021-07": "2023-01-27 19:16:47 -0800 0b0f8d5b088da606ffbb8b2828dc366982f106e5 Microsoft.Devices/stable/2021-07-02/iothub.json",
+  "package-2021-03": "2021-05-07 19:43:30 -0700 4b7dca50a9a7559865803927a87a06ad0d73ff06 Microsoft.Devices/stable/2021-03-31/iothub.json",
+  "package-preview-2021-03": "2021-04-05 22:04:32 -0700 2331a635ead0549b8c0f3891bf9bf2e5e5ad76bc Microsoft.Devices/preview/2021-03-03-preview/iothub.json",
+  "package-2020-03": "2021-05-05 01:19:33 -0700 8c76ee1ab76c977e1bdd4abc5369704684576111 Microsoft.Devices/stable/2020-03-01/iothub.json",
+  "package-2019-11": "2021-04-27 02:22:18 -0700 8873dabb56a800c037ca56beab11dd5a9ed988ad Microsoft.Devices/stable/2019-11-04/iothub.json",
+  "package-preview-2019-07": "2021-04-27 02:22:18 -0700 8873dabb56a800c037ca56beab11dd5a9ed988ad Microsoft.Devices/preview/2019-07-01-preview/iothub.json",
+  "package-2019-03": "2021-04-27 02:22:18 -0700 8873dabb56a800c037ca56beab11dd5a9ed988ad Microsoft.Devices/stable/2019-03-22/iothub.json",
+  "package-2018-04": "2021-04-27 02:22:18 -0700 8873dabb56a800c037ca56beab11dd5a9ed988ad Microsoft.Devices/stable/2018-04-01/iothub.json",
+  "package-2018-01": "2021-04-27 02:22:18 -0700 8873dabb56a800c037ca56beab11dd5a9ed988ad Microsoft.Devices/stable/2018-01-22/iothub.json",
+  "package-2017-07": "2021-04-27 02:22:18 -0700 8873dabb56a800c037ca56beab11dd5a9ed988ad Microsoft.Devices/stable/2017-07-01/iothub.json",
+  "package-2017-01": "2021-04-27 02:22:18 -0700 8873dabb56a800c037ca56beab11dd5a9ed988ad Microsoft.Devices/stable/2017-01-19/iothub.json",
+  "package-2016-02": "2021-04-27 02:22:18 -0700 8873dabb56a800c037ca56beab11dd5a9ed988ad Microsoft.Devices/stable/2016-02-03/iothub.json"
 }
\ No newline at end of file
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/_iot_hub_client.py
index 755034c47738..8b3eeeb0cae7 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/_iot_hub_client.py
@@ -71,6 +71,8 @@ def __init__(
         profile: KnownProfiles=KnownProfiles.default,
         **kwargs: Any
     ):
+        if api_version:
+            kwargs.setdefault('api_version', api_version)
         self._config = IotHubClientConfiguration(credential, subscription_id, **kwargs)
         self._client = ARMPipelineClient(base_url=base_url, config=self._config, **kwargs)
         super(IotHubClient, self).__init__(
@@ -197,7 +199,7 @@ def certificates(self):
         else:
             raise ValueError("API version {} does not have operation group 'certificates'".format(api_version))
         self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
+        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
 
     @property
     def iot_hub(self):
@@ -238,7 +240,7 @@ def iot_hub(self):
         else:
             raise ValueError("API version {} does not have operation group 'iot_hub'".format(api_version))
         self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
+        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
 
     @property
     def iot_hub_resource(self):
@@ -294,7 +296,7 @@ def iot_hub_resource(self):
         else:
             raise ValueError("API version {} does not have operation group 'iot_hub_resource'".format(api_version))
         self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
+        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
 
     @property
     def operations(self):
@@ -344,7 +346,7 @@ def operations(self):
         else:
             raise ValueError("API version {} does not have operation group 'operations'".format(api_version))
         self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
+        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
 
     @property
     def private_endpoint_connections(self):
@@ -376,7 +378,7 @@ def private_endpoint_connections(self):
         else:
             raise ValueError("API version {} does not have operation group 'private_endpoint_connections'".format(api_version))
         self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
+        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
 
     @property
     def private_link_resources(self):
@@ -408,7 +410,7 @@ def private_link_resources(self):
         else:
             raise ValueError("API version {} does not have operation group 'private_link_resources'".format(api_version))
         self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
+        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
 
     @property
     def resource_provider_common(self):
@@ -452,7 +454,7 @@ def resource_provider_common(self):
         else:
             raise ValueError("API version {} does not have operation group 'resource_provider_common'".format(api_version))
         self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
+        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
 
     def close(self):
         self._client.close()
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/_serialization.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/_serialization.py
index 25467dfc00bb..a00658b1fc19 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/_serialization.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/_serialization.py
@@ -631,7 +631,7 @@ def _serialize(self, target_obj, data_type=None, **kwargs):
                         if xml_desc.get("attr", False):
                             if xml_ns:
                                 ET.register_namespace(xml_prefix, xml_ns)
-                                xml_name = "{}{}".format(xml_ns, xml_name)
+                                xml_name = "{{{}}}{}".format(xml_ns, xml_name)
                             serialized.set(xml_name, new_attr)  # type: ignore
                             continue
                         if xml_desc.get("text", False):
@@ -664,8 +664,9 @@ def _serialize(self, target_obj, data_type=None, **kwargs):
                                 _serialized.update(_new_attr)  # type: ignore
                             _new_attr = _new_attr[k]  # type: ignore
                             _serialized = _serialized[k]
-                except ValueError:
-                    continue
+                except ValueError as err:
+                    if isinstance(err, SerializationError):
+                        raise
 
         except (AttributeError, KeyError, TypeError) as err:
             msg = "Attribute {} in object {} cannot be serialized.\n{}".format(attr_name, class_name, str(target_obj))
@@ -743,6 +744,8 @@ def query(self, name, data, data_type, **kwargs):
 
         :param data: The data to be serialized.
         :param str data_type: The type to be serialized from.
+        :keyword bool skip_quote: Whether to skip quote the serialized result.
+        Defaults to False.
         :rtype: str
         :raises: TypeError if serialization fails.
         :raises: ValueError if data is None
@@ -751,10 +754,8 @@ def query(self, name, data, data_type, **kwargs):
             # Treat the list aside, since we don't want to encode the div separator
             if data_type.startswith("["):
                 internal_data_type = data_type[1:-1]
-                data = [self.serialize_data(d, internal_data_type, **kwargs) if d is not None else "" for d in data]
-                if not kwargs.get("skip_quote", False):
-                    data = [quote(str(d), safe="") for d in data]
-                return str(self.serialize_iter(data, internal_data_type, **kwargs))
+                do_quote = not kwargs.get('skip_quote', False)
+                return str(self.serialize_iter(data, internal_data_type, do_quote=do_quote, **kwargs))
 
             # Not a list, regular serialization
             output = self.serialize_data(data, data_type, **kwargs)
@@ -893,6 +894,8 @@ def serialize_iter(self, data, iter_type, div=None, **kwargs):
          not be None or empty.
         :param str div: If set, this str will be used to combine the elements
          in the iterable into a combined string. Default is 'None'.
+        :keyword bool do_quote: Whether to quote the serialized result of each iterable element.
+        Defaults to False.
         :rtype: list, str
         """
         if isinstance(data, str):
@@ -905,9 +908,18 @@ def serialize_iter(self, data, iter_type, div=None, **kwargs):
         for d in data:
             try:
                 serialized.append(self.serialize_data(d, iter_type, **kwargs))
-            except ValueError:
+            except ValueError as err:
+                if isinstance(err, SerializationError):
+                    raise
                 serialized.append(None)
 
+        if kwargs.get('do_quote', False):
+            serialized = [
+                '' if s is None else quote(str(s), safe='')
+                for s
+                in serialized
+            ]
+
         if div:
             serialized = ["" if s is None else str(s) for s in serialized]
             serialized = div.join(serialized)
@@ -952,7 +964,9 @@ def serialize_dict(self, attr, dict_type, **kwargs):
         for key, value in attr.items():
             try:
                 serialized[self.serialize_unicode(key)] = self.serialize_data(value, dict_type, **kwargs)
-            except ValueError:
+            except ValueError as err:
+                if isinstance(err, SerializationError):
+                    raise
                 serialized[self.serialize_unicode(key)] = None
 
         if "xml" in serialization_ctxt:
@@ -1273,7 +1287,7 @@ def _extract_name_from_internal_type(internal_type):
     xml_name = internal_type_xml_map.get("name", internal_type.__name__)
     xml_ns = internal_type_xml_map.get("ns", None)
     if xml_ns:
-        xml_name = "{}{}".format(xml_ns, xml_name)
+        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
     return xml_name
 
 
@@ -1297,7 +1311,7 @@ def xml_key_extractor(attr, attr_desc, data):
     # Integrate namespace if necessary
     xml_ns = xml_desc.get("ns", internal_type_xml_map.get("ns", None))
     if xml_ns:
-        xml_name = "{}{}".format(xml_ns, xml_name)
+        xml_name = "{{{}}}{}".format(xml_ns, xml_name)
 
     # If it's an attribute, that's simple
     if xml_desc.get("attr", False):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/aio/_iot_hub_client.py
index 84e2ac460fe0..d9bfc84a362c 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/aio/_iot_hub_client.py
@@ -71,6 +71,8 @@ def __init__(
         profile: KnownProfiles = KnownProfiles.default,
         **kwargs: Any
     ) -> None:
+        if api_version:
+            kwargs.setdefault('api_version', api_version)
         self._config = IotHubClientConfiguration(credential, subscription_id, **kwargs)
         self._client = AsyncARMPipelineClient(base_url=base_url, config=self._config, **kwargs)
         super(IotHubClient, self).__init__(
@@ -197,7 +199,7 @@ def certificates(self):
         else:
             raise ValueError("API version {} does not have operation group 'certificates'".format(api_version))
         self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
+        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
 
     @property
     def iot_hub(self):
@@ -238,7 +240,7 @@ def iot_hub(self):
         else:
             raise ValueError("API version {} does not have operation group 'iot_hub'".format(api_version))
         self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
+        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
 
     @property
     def iot_hub_resource(self):
@@ -294,7 +296,7 @@ def iot_hub_resource(self):
         else:
             raise ValueError("API version {} does not have operation group 'iot_hub_resource'".format(api_version))
         self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
+        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
 
     @property
     def operations(self):
@@ -344,7 +346,7 @@ def operations(self):
         else:
             raise ValueError("API version {} does not have operation group 'operations'".format(api_version))
         self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
+        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
 
     @property
     def private_endpoint_connections(self):
@@ -376,7 +378,7 @@ def private_endpoint_connections(self):
         else:
             raise ValueError("API version {} does not have operation group 'private_endpoint_connections'".format(api_version))
         self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
+        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
 
     @property
     def private_link_resources(self):
@@ -408,7 +410,7 @@ def private_link_resources(self):
         else:
             raise ValueError("API version {} does not have operation group 'private_link_resources'".format(api_version))
         self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
+        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
 
     @property
     def resource_provider_common(self):
@@ -452,7 +454,7 @@ def resource_provider_common(self):
         else:
             raise ValueError("API version {} does not have operation group 'resource_provider_common'".format(api_version))
         self._config.api_version = api_version
-        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)))
+        return OperationClass(self._client, self._config, Serializer(self._models_dict(api_version)), Deserializer(self._models_dict(api_version)), api_version)
 
     async def close(self):
         await self._client.close()
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_configuration.py
index 83e3cf977747..2bd099b647b0 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", "2016-02-03")
+        api_version: str = kwargs.pop("api_version", "2016-02-03")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_iot_hub_client.py
index 165f9173ddc2..bd57604d1c4a 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_iot_hub_client.py
@@ -54,7 +54,9 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2016-02-03"
+        )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/aio/_configuration.py
index fecc19feceaa..2a14e4e3cae1 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", "2016-02-03")
+        api_version: str = kwargs.pop("api_version", "2016-02-03")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/aio/_iot_hub_client.py
index 1cb2d3b3dac5..fe379c896db3 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/aio/_iot_hub_client.py
@@ -55,7 +55,9 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2016-02-03"
+        )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/aio/operations/_iot_hub_resource_operations.py
index 2650b53920fa..9d080ec80a47 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -53,10 +53,6 @@
     build_list_keys_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -79,6 +75,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -106,7 +103,7 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -162,14 +159,14 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -343,7 +340,7 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -402,7 +399,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -478,7 +475,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -535,7 +532,7 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -624,7 +621,7 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -724,7 +721,7 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -784,7 +781,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -881,7 +878,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -988,7 +985,7 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1061,7 +1058,7 @@ async def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -1134,7 +1131,7 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -1193,7 +1190,7 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1298,7 +1295,7 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -1359,7 +1356,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1502,14 +1499,14 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -1574,7 +1571,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1679,7 +1676,7 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -1829,14 +1826,14 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -1990,14 +1987,14 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/models/_iot_hub_client_enums.py
index d36ac303bb1f..dfcfe92b4aa7 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/models/_iot_hub_client_enums.py
@@ -101,6 +101,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class OperationMonitoringLevel(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/models/_models_py3.py
index f5a423435543..d1c62bb56a20 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/models/_models_py3.py
@@ -967,7 +967,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2016_02_03.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/operations/_iot_hub_resource_operations.py
index 663ef287e4e7..e877bae44dbc 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2016_02_03/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,7 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json, text/json")
 
@@ -93,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -112,7 +108,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -126,7 +122,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -141,7 +137,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -150,7 +146,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -165,7 +161,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -195,7 +191,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -209,7 +205,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -226,7 +222,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -240,7 +236,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -257,7 +253,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -272,7 +268,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -294,7 +290,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -310,7 +306,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -332,7 +328,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -348,7 +344,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -370,7 +366,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -386,7 +382,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -403,7 +399,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -417,7 +413,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -434,7 +430,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -449,7 +445,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -466,7 +462,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -480,7 +476,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -495,7 +491,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json, text/json")
 
@@ -507,7 +503,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -526,7 +522,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -540,7 +536,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -557,7 +553,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     accept = _headers.pop("Accept", "application/json, text/json")
 
     # Construct URL
@@ -572,7 +568,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -589,7 +585,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json, text/json")
 
@@ -604,7 +600,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -623,7 +619,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json, text/json")
 
@@ -638,7 +634,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -669,6 +665,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -696,7 +693,7 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -752,14 +749,14 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -930,7 +927,7 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -989,7 +986,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -1064,7 +1061,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -1120,7 +1117,7 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1206,7 +1203,7 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1304,7 +1301,7 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1364,7 +1361,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1461,7 +1458,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1568,7 +1565,7 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1641,7 +1638,7 @@ def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -1714,7 +1711,7 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -1770,7 +1767,7 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1873,7 +1870,7 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -1934,7 +1931,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2077,14 +2074,14 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2149,7 +2146,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2254,7 +2251,7 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -2404,14 +2401,14 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2565,14 +2562,14 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2016-02-03"] = kwargs.pop("api_version", _params.pop("api-version", "2016-02-03"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2016-02-03"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_configuration.py
index 2c7d4dfbbf14..14db50baaf02 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", "2017-01-19")
+        api_version: str = kwargs.pop("api_version", "2017-01-19")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_iot_hub_client.py
index 2da1f2d62936..d3dc2179b9cd 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_iot_hub_client.py
@@ -54,7 +54,9 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2017-01-19"
+        )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/aio/_configuration.py
index 43001a34920d..ff1cd674b074 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", "2017-01-19")
+        api_version: str = kwargs.pop("api_version", "2017-01-19")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/aio/_iot_hub_client.py
index 7de77c63d16f..58f52f97d220 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/aio/_iot_hub_client.py
@@ -55,7 +55,9 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2017-01-19"
+        )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/aio/operations/_iot_hub_resource_operations.py
index cd4b3e2a1c08..e57a591a8718 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -53,10 +53,6 @@
     build_list_keys_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -79,6 +75,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -106,7 +103,7 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -162,14 +159,14 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -343,7 +340,7 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -402,7 +399,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -478,7 +475,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -535,7 +532,7 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -624,7 +621,7 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -724,7 +721,7 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -784,7 +781,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -881,7 +878,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -988,7 +985,7 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1061,7 +1058,7 @@ async def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -1134,7 +1131,7 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -1193,7 +1190,7 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1298,7 +1295,7 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -1359,7 +1356,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1502,14 +1499,14 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -1574,7 +1571,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1679,7 +1676,7 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -1829,14 +1826,14 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -1990,14 +1987,14 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/models/_iot_hub_client_enums.py
index ab000036578c..ce288bade6cc 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/models/_iot_hub_client_enums.py
@@ -101,6 +101,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class OperationMonitoringLevel(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/models/_models_py3.py
index d6c0d7659470..cae982bc098d 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/models/_models_py3.py
@@ -1043,7 +1043,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2017_01_19.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/operations/_iot_hub_resource_operations.py
index 8c16279e0753..0d9a4acea497 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_01_19/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,7 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -93,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -112,7 +108,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -126,7 +122,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -141,7 +137,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -150,7 +146,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -165,7 +161,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -195,7 +191,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -209,7 +205,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -226,7 +222,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -240,7 +236,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -257,7 +253,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -272,7 +268,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -294,7 +290,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -310,7 +306,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -332,7 +328,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -348,7 +344,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -370,7 +366,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -386,7 +382,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -403,7 +399,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -417,7 +413,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -434,7 +430,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -449,7 +445,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -466,7 +462,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -480,7 +476,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -495,7 +491,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -507,7 +503,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -526,7 +522,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -540,7 +536,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -557,7 +553,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -572,7 +568,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -589,7 +585,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -604,7 +600,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -623,7 +619,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -638,7 +634,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -669,6 +665,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -696,7 +693,7 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -752,14 +749,14 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -930,7 +927,7 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -989,7 +986,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -1064,7 +1061,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -1120,7 +1117,7 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1206,7 +1203,7 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1304,7 +1301,7 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1364,7 +1361,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1461,7 +1458,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1568,7 +1565,7 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1641,7 +1638,7 @@ def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -1714,7 +1711,7 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -1770,7 +1767,7 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1873,7 +1870,7 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -1934,7 +1931,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2077,14 +2074,14 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2149,7 +2146,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2254,7 +2251,7 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -2404,14 +2401,14 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2565,14 +2562,14 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-01-19"] = kwargs.pop("api_version", _params.pop("api-version", "2017-01-19"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-01-19"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_configuration.py
index e38ae7135670..2cbd20a90d16 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", "2017-07-01")
+        api_version: str = kwargs.pop("api_version", "2017-07-01")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_iot_hub_client.py
index d8c2715c89f7..eaa5568b5a6a 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_iot_hub_client.py
@@ -58,9 +58,13 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2017-07-01")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2017-07-01"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2017-07-01"
+        )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/_configuration.py
index 584edefb0edc..6a55dc4d60e2 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", "2017-07-01")
+        api_version: str = kwargs.pop("api_version", "2017-07-01")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/_iot_hub_client.py
index 734f65b30fb6..3e74f2ff9349 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/_iot_hub_client.py
@@ -59,9 +59,13 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2017-07-01")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2017-07-01"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2017-07-01"
+        )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/operations/_certificates_operations.py
index 65ec7a769018..97469d71e00d 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_verify_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list_by_iot_hub(
@@ -90,7 +87,7 @@ async def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -158,7 +155,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -315,14 +312,14 @@ async def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateBodyDescription")
@@ -403,7 +400,7 @@ async def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -472,7 +469,7 @@ async def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -631,14 +628,14 @@ async def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/operations/_iot_hub_resource_operations.py
index d526db87ba85..83b4b5f9128f 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -53,10 +53,6 @@
     build_list_keys_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -79,6 +75,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -106,7 +103,7 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -163,14 +160,14 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -357,7 +354,7 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -417,7 +414,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -493,7 +490,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -550,7 +547,7 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -638,7 +635,7 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -738,7 +735,7 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -798,7 +795,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -895,7 +892,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1002,7 +999,7 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1075,7 +1072,7 @@ async def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -1148,7 +1145,7 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -1207,7 +1204,7 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1312,7 +1309,7 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -1373,7 +1370,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1516,14 +1513,14 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -1588,7 +1585,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1693,7 +1690,7 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -1843,14 +1840,14 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2004,14 +2001,14 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/operations/_operations.py
index 56b9cce358b9..0edb08373f8a 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/aio/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, AsyncIterable, Callable, Dict, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._vendor import _convert_request
 from ...operations._operations import build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +51,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
@@ -70,7 +66,7 @@ def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/models/_iot_hub_client_enums.py
index ab000036578c..ce288bade6cc 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/models/_iot_hub_client_enums.py
@@ -101,6 +101,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class OperationMonitoringLevel(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/models/_models_py3.py
index 15965b3e1fe9..db97f7070cc3 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/models/_models_py3.py
@@ -1302,7 +1302,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2017_07_01.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/operations/_certificates_operations.py
index 4094acf3c9d4..075fb4da87dc 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -26,12 +26,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +41,7 @@ def build_list_by_iot_hub_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -59,7 +55,7 @@ def build_list_by_iot_hub_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -76,7 +72,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -93,7 +89,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -116,7 +112,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -134,7 +130,7 @@ def build_create_or_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -161,7 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -202,7 +198,7 @@ def build_generate_verification_code_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -219,7 +215,7 @@ def build_generate_verification_code_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -243,7 +239,7 @@ def build_verify_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -261,7 +257,7 @@ def build_verify_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,6 +289,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list_by_iot_hub(
@@ -322,7 +319,7 @@ def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -390,7 +387,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -547,14 +544,14 @@ def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateBodyDescription")
@@ -635,7 +632,7 @@ def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -704,7 +701,7 @@ def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -863,14 +860,14 @@ def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/operations/_iot_hub_resource_operations.py
index 8c3f68fa6175..7e02bef480f3 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,7 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -93,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -114,7 +110,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -128,7 +124,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -143,7 +139,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -152,7 +148,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -167,7 +163,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -180,7 +176,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -197,7 +193,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -211,7 +207,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -228,7 +224,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -242,7 +238,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -259,7 +255,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -274,7 +270,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -296,7 +292,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -312,7 +308,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -334,7 +330,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -350,7 +346,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -372,7 +368,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -388,7 +384,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -405,7 +401,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -419,7 +415,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -436,7 +432,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -451,7 +447,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -468,7 +464,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -482,7 +478,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -497,7 +493,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -509,7 +505,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -528,7 +524,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -542,7 +538,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -559,7 +555,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -574,7 +570,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -591,7 +587,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -606,7 +602,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -625,7 +621,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -640,7 +636,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -671,6 +667,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -698,7 +695,7 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -755,14 +752,14 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -946,7 +943,7 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1006,7 +1003,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -1081,7 +1078,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -1137,7 +1134,7 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1222,7 +1219,7 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1320,7 +1317,7 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1380,7 +1377,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1477,7 +1474,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1584,7 +1581,7 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1657,7 +1654,7 @@ def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -1730,7 +1727,7 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -1786,7 +1783,7 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1889,7 +1886,7 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -1950,7 +1947,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2093,14 +2090,14 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2165,7 +2162,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2270,7 +2267,7 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -2420,14 +2417,14 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2581,14 +2578,14 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/operations/_operations.py
index 95cf125e0b0a..1dc093f8c3c9 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2017_07_01/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Iterable, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._serialization import Serializer
 from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +40,7 @@ def build_list_request(**kwargs: Any) -> HttpRequest:
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -78,6 +73,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
@@ -91,7 +87,7 @@ def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2017-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2017-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2017-07-01"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_configuration.py
index c70e009c1afa..670b711f8e9f 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", "2018-01-22")
+        api_version: str = kwargs.pop("api_version", "2018-01-22")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_iot_hub_client.py
index ed611ac054d0..4d1f8dcd91ef 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_iot_hub_client.py
@@ -58,9 +58,13 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2018-01-22")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2018-01-22"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2018-01-22"
+        )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/_configuration.py
index 48dd29af1cd4..499e0bcd128b 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", "2018-01-22")
+        api_version: str = kwargs.pop("api_version", "2018-01-22")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/_iot_hub_client.py
index c4fdb6296e3b..3bd23ee6cdf7 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/_iot_hub_client.py
@@ -59,9 +59,13 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2018-01-22")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2018-01-22"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2018-01-22"
+        )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/operations/_certificates_operations.py
index de520fdd801f..ea6bd33cce08 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_verify_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list_by_iot_hub(
@@ -90,7 +87,7 @@ async def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -158,7 +155,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -315,14 +312,14 @@ async def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateBodyDescription")
@@ -403,7 +400,7 @@ async def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -472,7 +469,7 @@ async def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -631,14 +628,14 @@ async def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/operations/_iot_hub_resource_operations.py
index 81d9f20727d6..312ffa52056f 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -54,10 +54,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -80,6 +76,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -107,7 +104,7 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -164,14 +161,14 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -358,7 +355,7 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -418,14 +415,14 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -578,7 +575,7 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -637,7 +634,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -713,7 +710,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -770,7 +767,7 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -858,7 +855,7 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -958,7 +955,7 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1018,7 +1015,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1117,7 +1114,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1224,7 +1221,7 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1297,7 +1294,7 @@ async def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -1370,7 +1367,7 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -1429,7 +1426,7 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1534,7 +1531,7 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -1595,7 +1592,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1738,14 +1735,14 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -1810,7 +1807,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1915,7 +1912,7 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -2065,14 +2062,14 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2226,14 +2223,14 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/operations/_operations.py
index 98cc00e63bf4..0f18d766dcba 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/aio/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, AsyncIterable, Callable, Dict, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._vendor import _convert_request
 from ...operations._operations import build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +51,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
@@ -70,7 +66,7 @@ def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/models/_iot_hub_client_enums.py
index ab000036578c..ce288bade6cc 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/models/_iot_hub_client_enums.py
@@ -101,6 +101,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class OperationMonitoringLevel(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/models/_models_py3.py
index 92f2b0b2eb5d..1c8a1aaabfdc 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/models/_models_py3.py
@@ -1303,7 +1303,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2018_01_22.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/operations/_certificates_operations.py
index c3944bbc8a15..39bde7faf1a7 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -26,12 +26,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +41,7 @@ def build_list_by_iot_hub_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -59,7 +55,7 @@ def build_list_by_iot_hub_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -76,7 +72,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -93,7 +89,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -116,7 +112,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -134,7 +130,7 @@ def build_create_or_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -161,7 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -202,7 +198,7 @@ def build_generate_verification_code_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -219,7 +215,7 @@ def build_generate_verification_code_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -243,7 +239,7 @@ def build_verify_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -261,7 +257,7 @@ def build_verify_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,6 +289,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list_by_iot_hub(
@@ -322,7 +319,7 @@ def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -390,7 +387,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -547,14 +544,14 @@ def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateBodyDescription")
@@ -635,7 +632,7 @@ def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -704,7 +701,7 @@ def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -863,14 +860,14 @@ def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/operations/_iot_hub_resource_operations.py
index 5d6bd7e16a7d..a7bb49bb5855 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,7 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -93,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -114,7 +110,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -129,7 +125,7 @@ def build_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -148,7 +144,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -162,7 +158,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -177,7 +173,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +182,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -201,7 +197,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -214,7 +210,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -231,7 +227,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -245,7 +241,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -262,7 +258,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -276,7 +272,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,7 +289,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -308,7 +304,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -330,7 +326,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -346,7 +342,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -368,7 +364,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -384,7 +380,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -406,7 +402,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -422,7 +418,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -439,7 +435,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -453,7 +449,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -470,7 +466,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -485,7 +481,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -502,7 +498,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -516,7 +512,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -531,7 +527,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -543,7 +539,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -562,7 +558,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -576,7 +572,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -593,7 +589,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -608,7 +604,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -625,7 +621,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -640,7 +636,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -659,7 +655,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -674,7 +670,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -705,6 +701,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -732,7 +729,7 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -789,14 +786,14 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -980,7 +977,7 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1040,14 +1037,14 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -1197,7 +1194,7 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1256,7 +1253,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -1331,7 +1328,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -1387,7 +1384,7 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1472,7 +1469,7 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1570,7 +1567,7 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1630,7 +1627,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1729,7 +1726,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1836,7 +1833,7 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1909,7 +1906,7 @@ def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -1982,7 +1979,7 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -2038,7 +2035,7 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2141,7 +2138,7 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -2202,7 +2199,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2345,14 +2342,14 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2417,7 +2414,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2522,7 +2519,7 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -2672,14 +2669,14 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2833,14 +2830,14 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/operations/_operations.py
index 789e9ed4d68f..901d6096ccd3 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_01_22/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Iterable, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._serialization import Serializer
 from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +40,7 @@ def build_list_request(**kwargs: Any) -> HttpRequest:
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -78,6 +73,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
@@ -91,7 +87,7 @@ def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-01-22"] = kwargs.pop("api_version", _params.pop("api-version", "2018-01-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-01-22"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_configuration.py
index b45f2e6a7f39..5445c0c1aef4 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", "2018-04-01")
+        api_version: str = kwargs.pop("api_version", "2018-04-01")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_iot_hub_client.py
index 22ad5713296c..a2b280475f1f 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_iot_hub_client.py
@@ -61,12 +61,16 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2018-04-01")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2018-04-01"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2018-04-01"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2018-04-01"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/_configuration.py
index 5ed4bc5e6cc4..4220d50e8457 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", "2018-04-01")
+        api_version: str = kwargs.pop("api_version", "2018-04-01")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/_iot_hub_client.py
index 9a97ebde0490..765e8162fa96 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/_iot_hub_client.py
@@ -62,12 +62,16 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2018-04-01")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2018-04-01"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2018-04-01"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2018-04-01"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_certificates_operations.py
index f27971b407fa..4e449e5348e2 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_verify_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list_by_iot_hub(
@@ -90,7 +87,7 @@ async def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -158,7 +155,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -315,14 +312,14 @@ async def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateBodyDescription")
@@ -403,7 +400,7 @@ async def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -472,7 +469,7 @@ async def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -631,14 +628,14 @@ async def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_iot_hub_resource_operations.py
index bea23e695650..b5b8299c85e3 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -57,10 +57,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -83,6 +79,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -110,7 +107,7 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -167,14 +164,14 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -361,7 +358,7 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -421,14 +418,14 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -581,7 +578,7 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -640,7 +637,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -716,7 +713,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -773,7 +770,7 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -861,7 +858,7 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -961,7 +958,7 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1021,7 +1018,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1120,7 +1117,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1227,7 +1224,7 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1300,7 +1297,7 @@ async def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -1373,7 +1370,7 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -1432,7 +1429,7 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1537,7 +1534,7 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -1598,7 +1595,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1692,7 +1689,7 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1835,14 +1832,14 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -1975,14 +1972,14 @@ async def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2117,14 +2114,14 @@ async def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2191,7 +2188,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2296,7 +2293,7 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -2446,14 +2443,14 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2607,14 +2604,14 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_operations.py
index 1697a622b9cf..ca06dfb055ae 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, AsyncIterable, Callable, Dict, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._vendor import _convert_request
 from ...operations._operations import build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +51,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
@@ -70,7 +66,7 @@ def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_resource_provider_common_operations.py
index 3ad7fb5cc95f..ee2319a71eee 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/aio/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._resource_provider_common_operations import build_get_subscription_quota_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -77,7 +73,7 @@ async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptio
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
         request = build_get_subscription_quota_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/models/_iot_hub_client_enums.py
index 6331d5811554..ae98567cc465 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/models/_iot_hub_client_enums.py
@@ -114,6 +114,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class OperationMonitoringLevel(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/models/_models_py3.py
index 2d559720c36d..d2c01665a5f5 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/models/_models_py3.py
@@ -1389,7 +1389,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2018_04_01.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_certificates_operations.py
index 3d335ee31bde..424dfeac9b0d 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -26,12 +26,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +41,7 @@ def build_list_by_iot_hub_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -59,7 +55,7 @@ def build_list_by_iot_hub_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -76,7 +72,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -93,7 +89,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -116,7 +112,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -134,7 +130,7 @@ def build_create_or_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -161,7 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -202,7 +198,7 @@ def build_generate_verification_code_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -219,7 +215,7 @@ def build_generate_verification_code_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -243,7 +239,7 @@ def build_verify_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -261,7 +257,7 @@ def build_verify_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,6 +289,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list_by_iot_hub(
@@ -322,7 +319,7 @@ def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -390,7 +387,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -547,14 +544,14 @@ def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateBodyDescription")
@@ -635,7 +632,7 @@ def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -704,7 +701,7 @@ def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -863,14 +860,14 @@ def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_iot_hub_resource_operations.py
index 7d1d2f3ff826..e3b14cf0c143 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,7 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -93,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -114,7 +110,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -129,7 +125,7 @@ def build_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -148,7 +144,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -162,7 +158,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -177,7 +173,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +182,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -201,7 +197,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -214,7 +210,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -231,7 +227,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -245,7 +241,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -262,7 +258,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -276,7 +272,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,7 +289,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -308,7 +304,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -330,7 +326,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -346,7 +342,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -368,7 +364,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -384,7 +380,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -406,7 +402,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -422,7 +418,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -439,7 +435,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -453,7 +449,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -470,7 +466,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -485,7 +481,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -502,7 +498,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -516,7 +512,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -533,7 +529,7 @@ def build_get_endpoint_health_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -547,7 +543,7 @@ def build_get_endpoint_health_request(
         "iotHubName": _SERIALIZER.url("iot_hub_name", iot_hub_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -562,7 +558,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -574,7 +570,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -593,7 +589,7 @@ def build_test_all_routes_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -608,7 +604,7 @@ def build_test_all_routes_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -627,7 +623,7 @@ def build_test_route_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -642,7 +638,7 @@ def build_test_route_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -661,7 +657,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -675,7 +671,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -692,7 +688,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -707,7 +703,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -724,7 +720,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -739,7 +735,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -758,7 +754,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -773,7 +769,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -804,6 +800,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -831,7 +828,7 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -888,14 +885,14 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -1079,7 +1076,7 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1139,14 +1136,14 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -1296,7 +1293,7 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1355,7 +1352,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -1430,7 +1427,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -1486,7 +1483,7 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1571,7 +1568,7 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1669,7 +1666,7 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1729,7 +1726,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1828,7 +1825,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1935,7 +1932,7 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -2008,7 +2005,7 @@ def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -2081,7 +2078,7 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -2137,7 +2134,7 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2240,7 +2237,7 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -2301,7 +2298,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2394,7 +2391,7 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2537,14 +2534,14 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2677,14 +2674,14 @@ def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2819,14 +2816,14 @@ def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2893,7 +2890,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2998,7 +2995,7 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -3148,14 +3145,14 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -3309,14 +3306,14 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_operations.py
index 03bef3960b7d..b721f6e37854 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Iterable, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._serialization import Serializer
 from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +40,7 @@ def build_list_request(**kwargs: Any) -> HttpRequest:
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -78,6 +73,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
@@ -91,7 +87,7 @@ def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_resource_provider_common_operations.py
index fe69fbc47469..3e4287e6951b 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2018_04_01/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -43,7 +38,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -52,7 +47,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -81,6 +76,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -104,7 +100,7 @@ def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuota
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2018-04-01"] = kwargs.pop("api_version", _params.pop("api-version", "2018-04-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2018-04-01"))
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
         request = build_get_subscription_quota_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_configuration.py
index 1652a7a9b244..74a45bbfe2f8 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", "2019-03-22")
+        api_version: str = kwargs.pop("api_version", "2019-03-22")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_iot_hub_client.py
index b97447bc727a..da55c6371aa9 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_iot_hub_client.py
@@ -69,13 +69,17 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2019-03-22")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-03-22"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2019-03-22"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-03-22"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize, "2019-03-22")
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/_configuration.py
index 02cbb7971fcf..c28354bb6ea1 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", "2019-03-22")
+        api_version: str = kwargs.pop("api_version", "2019-03-22")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/_iot_hub_client.py
index f7049cab0d2b..769a87917628 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/_iot_hub_client.py
@@ -70,13 +70,17 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2019-03-22")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-03-22"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2019-03-22"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-03-22"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize, "2019-03-22")
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_certificates_operations.py
index 88315007ea70..c9bd39673aa8 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_verify_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list_by_iot_hub(
@@ -90,7 +87,7 @@ async def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -158,7 +155,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -315,14 +312,14 @@ async def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateBodyDescription")
@@ -403,7 +400,7 @@ async def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -472,7 +469,7 @@ async def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -631,14 +628,14 @@ async def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_iot_hub_operations.py
index ec91b13b794b..0fdb6927fb6f 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -30,10 +30,6 @@
 from ..._vendor import _convert_request
 from ...operations._iot_hub_operations import build_manual_failover_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +52,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     async def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -75,14 +72,14 @@ async def _manual_failover_initial(  # pylint: disable=inconsistent-return-state
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -241,7 +238,7 @@ async def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_iot_hub_resource_operations.py
index 2e0a8f603b15..1b2907d7ffe4 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -57,10 +57,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -83,6 +79,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -110,7 +107,7 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -167,14 +164,14 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -361,7 +358,7 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -421,14 +418,14 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -581,7 +578,7 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -640,7 +637,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -716,7 +713,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -773,7 +770,7 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -861,7 +858,7 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -961,7 +958,7 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1021,7 +1018,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1120,7 +1117,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1227,7 +1224,7 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1300,7 +1297,7 @@ async def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -1373,7 +1370,7 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -1432,7 +1429,7 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1537,7 +1534,7 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -1598,7 +1595,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1692,7 +1689,7 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1835,14 +1832,14 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -1975,14 +1972,14 @@ async def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2117,14 +2114,14 @@ async def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2191,7 +2188,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2296,7 +2293,7 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -2446,14 +2443,14 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2607,14 +2604,14 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_operations.py
index 59a83418bc59..2ceede85cd65 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, AsyncIterable, Callable, Dict, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._vendor import _convert_request
 from ...operations._operations import build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +51,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
@@ -70,7 +66,7 @@ def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_resource_provider_common_operations.py
index daae2f92d08d..63c74bf05c60 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/aio/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._resource_provider_common_operations import build_get_subscription_quota_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -77,7 +73,7 @@ async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptio
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
         request = build_get_subscription_quota_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/models/_iot_hub_client_enums.py
index e59777721cda..2a2b2ef64ffa 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/models/_iot_hub_client_enums.py
@@ -133,6 +133,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class RouteErrorSeverity(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/models/_models_py3.py
index d9ee18b34cb8..427425db95dd 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/models/_models_py3.py
@@ -1456,7 +1456,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2019_03_22.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_certificates_operations.py
index 81c6c5b2665a..64d6ff335fe5 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -26,12 +26,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +41,7 @@ def build_list_by_iot_hub_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -59,7 +55,7 @@ def build_list_by_iot_hub_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -76,7 +72,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -93,7 +89,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -116,7 +112,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -134,7 +130,7 @@ def build_create_or_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -161,7 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -202,7 +198,7 @@ def build_generate_verification_code_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -219,7 +215,7 @@ def build_generate_verification_code_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -243,7 +239,7 @@ def build_verify_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -261,7 +257,7 @@ def build_verify_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,6 +289,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list_by_iot_hub(
@@ -322,7 +319,7 @@ def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -390,7 +387,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -547,14 +544,14 @@ def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateBodyDescription")
@@ -635,7 +632,7 @@ def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -704,7 +701,7 @@ def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -863,14 +860,14 @@ def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_iot_hub_operations.py
index d3824f2a2512..dd27a483a98d 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_manual_failover_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -62,7 +58,7 @@ def build_manual_failover_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -93,6 +89,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -112,14 +109,14 @@ def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -278,7 +275,7 @@ def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_iot_hub_resource_operations.py
index 10180611fcbd..0ab5cd2bd40e 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,7 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -93,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -114,7 +110,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -129,7 +125,7 @@ def build_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -148,7 +144,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -162,7 +158,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -177,7 +173,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +182,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -201,7 +197,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -214,7 +210,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -231,7 +227,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -245,7 +241,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -262,7 +258,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -276,7 +272,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,7 +289,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -308,7 +304,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -330,7 +326,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -346,7 +342,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -368,7 +364,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -384,7 +380,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -406,7 +402,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -422,7 +418,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -439,7 +435,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -453,7 +449,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -470,7 +466,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -485,7 +481,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -502,7 +498,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -516,7 +512,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -533,7 +529,7 @@ def build_get_endpoint_health_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -547,7 +543,7 @@ def build_get_endpoint_health_request(
         "iotHubName": _SERIALIZER.url("iot_hub_name", iot_hub_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -562,7 +558,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -574,7 +570,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -593,7 +589,7 @@ def build_test_all_routes_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -608,7 +604,7 @@ def build_test_all_routes_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -627,7 +623,7 @@ def build_test_route_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -642,7 +638,7 @@ def build_test_route_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -661,7 +657,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -675,7 +671,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -692,7 +688,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -707,7 +703,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -724,7 +720,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -739,7 +735,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -758,7 +754,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -773,7 +769,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -804,6 +800,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -831,7 +828,7 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -888,14 +885,14 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -1079,7 +1076,7 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1139,14 +1136,14 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -1296,7 +1293,7 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1355,7 +1352,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -1430,7 +1427,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -1486,7 +1483,7 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1571,7 +1568,7 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1669,7 +1666,7 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1729,7 +1726,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1828,7 +1825,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1935,7 +1932,7 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -2008,7 +2005,7 @@ def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -2081,7 +2078,7 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -2137,7 +2134,7 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2240,7 +2237,7 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -2301,7 +2298,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2394,7 +2391,7 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2537,14 +2534,14 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2677,14 +2674,14 @@ def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2819,14 +2816,14 @@ def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2893,7 +2890,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2998,7 +2995,7 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -3148,14 +3145,14 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -3309,14 +3306,14 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_operations.py
index 7f46e2b67b03..c0cab2bb5252 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Iterable, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._serialization import Serializer
 from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +40,7 @@ def build_list_request(**kwargs: Any) -> HttpRequest:
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -78,6 +73,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
@@ -91,7 +87,7 @@ def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_resource_provider_common_operations.py
index 01aac4672da3..1c17604cf5f7 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_03_22/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -43,7 +38,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -52,7 +47,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -81,6 +76,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -104,7 +100,7 @@ def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuota
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-03-22"] = kwargs.pop("api_version", _params.pop("api-version", "2019-03-22"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-03-22"))
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
         request = build_get_subscription_quota_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_configuration.py
index 2fac9d2365e6..cbc572e65322 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop("api_version", "2019-07-01-preview")
+        api_version: str = kwargs.pop("api_version", "2019-07-01-preview")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_iot_hub_client.py
index 024e9cbf8ed5..fabd9ee4a2e9 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_iot_hub_client.py
@@ -70,13 +70,21 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-07-01-preview"
+        )
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-07-01-preview"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2019-07-01-preview"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-07-01-preview"
+        )
+        self.iot_hub = IotHubOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-07-01-preview"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/_configuration.py
index 132f273707f0..fcfc753fca1b 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop("api_version", "2019-07-01-preview")
+        api_version: str = kwargs.pop("api_version", "2019-07-01-preview")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/_iot_hub_client.py
index 659996fd640e..f254aabaa925 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/_iot_hub_client.py
@@ -71,13 +71,21 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-07-01-preview"
+        )
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-07-01-preview"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2019-07-01-preview"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-07-01-preview"
+        )
+        self.iot_hub = IotHubOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-07-01-preview"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_certificates_operations.py
index e0deb2b2b954..4702ae38700b 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_verify_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list_by_iot_hub(
@@ -90,8 +87,8 @@ async def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
@@ -160,8 +157,8 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
@@ -320,8 +317,8 @@ async def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -329,7 +326,7 @@ async def create_or_update(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateBodyDescription")
@@ -410,8 +407,8 @@ async def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -481,8 +478,8 @@ async def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
@@ -642,8 +639,8 @@ async def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -651,7 +648,7 @@ async def verify(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_iot_hub_operations.py
index f12309280864..ae54b25c900f 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -30,10 +30,6 @@
 from ..._vendor import _convert_request
 from ...operations._iot_hub_operations import build_manual_failover_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +52,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     async def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -75,8 +72,8 @@ async def _manual_failover_initial(  # pylint: disable=inconsistent-return-state
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
@@ -84,7 +81,7 @@ async def _manual_failover_initial(  # pylint: disable=inconsistent-return-state
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -232,8 +229,8 @@ async def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_iot_hub_resource_operations.py
index a2555506cd20..c2c9f047901e 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -57,10 +57,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -83,6 +79,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -110,8 +107,8 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
@@ -169,8 +166,8 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -178,7 +175,7 @@ async def _create_or_update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -366,8 +363,8 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -428,8 +425,8 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -437,7 +434,7 @@ async def _update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -590,8 +587,8 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -651,8 +648,8 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
@@ -730,8 +727,8 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -789,8 +786,8 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -879,8 +876,8 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -981,8 +978,8 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
@@ -1043,8 +1040,8 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1144,8 +1141,8 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
@@ -1253,8 +1250,8 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
@@ -1328,8 +1325,8 @@ async def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
@@ -1403,8 +1400,8 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -1464,8 +1461,8 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
@@ -1571,8 +1568,8 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
@@ -1634,8 +1631,8 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
@@ -1730,8 +1727,8 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
@@ -1875,8 +1872,8 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
@@ -1884,7 +1881,7 @@ async def check_name_availability(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2017,8 +2014,8 @@ async def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
@@ -2026,7 +2023,7 @@ async def test_all_routes(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2161,8 +2158,8 @@ async def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
@@ -2170,7 +2167,7 @@ async def test_route(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2237,8 +2234,8 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
@@ -2344,8 +2341,8 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
@@ -2497,8 +2494,8 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -2506,7 +2503,7 @@ async def export_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2661,8 +2658,8 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -2670,7 +2667,7 @@ async def import_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_operations.py
index 7b03befad2e7..d4891c414712 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, AsyncIterable, Callable, Dict, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._vendor import _convert_request
 from ...operations._operations import build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +51,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
@@ -70,8 +66,8 @@ def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_resource_provider_common_operations.py
index 8abb83f074a2..6c5274a0d342 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/aio/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._resource_provider_common_operations import build_get_subscription_quota_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -77,8 +73,8 @@ async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptio
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/models/_iot_hub_client_enums.py
index 35977cfabec3..d348e72d3242 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/models/_iot_hub_client_enums.py
@@ -130,6 +130,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class RouteErrorSeverity(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/models/_models_py3.py
index 48be276791f9..7e6adeff804a 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/models/_models_py3.py
@@ -1530,7 +1530,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2019_07_01_preview.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_certificates_operations.py
index b34a874069c5..fd00cfa5b1a5 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -26,12 +26,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,9 +41,7 @@ def build_list_by_iot_hub_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +55,7 @@ def build_list_by_iot_hub_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,9 +72,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -97,7 +89,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -120,9 +112,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -140,7 +130,7 @@ def build_create_or_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -167,9 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -210,9 +198,7 @@ def build_generate_verification_code_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -229,7 +215,7 @@ def build_generate_verification_code_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -253,9 +239,7 @@ def build_verify_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -273,7 +257,7 @@ def build_verify_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -305,6 +289,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list_by_iot_hub(
@@ -334,8 +319,8 @@ def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
@@ -404,8 +389,8 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
@@ -564,8 +549,8 @@ def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -573,7 +558,7 @@ def create_or_update(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateBodyDescription")
@@ -654,8 +639,8 @@ def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -725,8 +710,8 @@ def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
@@ -886,8 +871,8 @@ def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -895,7 +880,7 @@ def verify(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_iot_hub_operations.py
index 39c8a12576b2..c8f48d8848f1 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,9 +43,7 @@ def build_manual_failover_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -64,7 +58,7 @@ def build_manual_failover_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -95,6 +89,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -114,8 +109,8 @@ def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
@@ -123,7 +118,7 @@ def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -271,8 +266,8 @@ def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_iot_hub_resource_operations.py
index 3fff2f65c14d..d57fafb87215 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,9 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -63,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -80,9 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -97,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -118,9 +110,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -135,7 +125,7 @@ def build_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -154,9 +144,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -170,7 +158,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -185,9 +173,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -196,7 +182,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -211,9 +197,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -226,7 +210,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -243,9 +227,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -259,7 +241,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -276,9 +258,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -292,7 +272,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -309,9 +289,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -326,7 +304,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -348,9 +326,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -366,7 +342,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -388,9 +364,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -406,7 +380,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -428,9 +402,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -446,7 +418,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -463,9 +435,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -479,7 +449,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -496,9 +466,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -513,7 +481,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -530,9 +498,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -546,7 +512,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -563,9 +529,7 @@ def build_get_endpoint_health_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -579,7 +543,7 @@ def build_get_endpoint_health_request(
         "iotHubName": _SERIALIZER.url("iot_hub_name", iot_hub_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -594,9 +558,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -608,7 +570,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -627,9 +589,7 @@ def build_test_all_routes_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -644,7 +604,7 @@ def build_test_all_routes_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -663,9 +623,7 @@ def build_test_route_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -680,7 +638,7 @@ def build_test_route_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -699,9 +657,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -715,7 +671,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -732,9 +688,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -749,7 +703,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -766,9 +720,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -783,7 +735,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -802,9 +754,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -819,7 +769,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -850,6 +800,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -877,8 +828,8 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
@@ -936,8 +887,8 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -945,7 +896,7 @@ def _create_or_update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -1133,8 +1084,8 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -1195,8 +1146,8 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -1204,7 +1155,7 @@ def _update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -1357,8 +1308,8 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -1418,8 +1369,8 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
@@ -1496,8 +1447,8 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1555,8 +1506,8 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1643,8 +1594,8 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1743,8 +1694,8 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
@@ -1805,8 +1756,8 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1906,8 +1857,8 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
@@ -2015,8 +1966,8 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
@@ -2090,8 +2041,8 @@ def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
@@ -2165,8 +2116,8 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -2223,8 +2174,8 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
@@ -2328,8 +2279,8 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
@@ -2391,8 +2342,8 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
@@ -2487,8 +2438,8 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
@@ -2632,8 +2583,8 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
@@ -2641,7 +2592,7 @@ def check_name_availability(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2774,8 +2725,8 @@ def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
@@ -2783,7 +2734,7 @@ def test_all_routes(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2918,8 +2869,8 @@ def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
@@ -2927,7 +2878,7 @@ def test_route(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2994,8 +2945,8 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
@@ -3101,8 +3052,8 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
@@ -3254,8 +3205,8 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -3263,7 +3214,7 @@ def export_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -3418,8 +3369,8 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -3427,7 +3378,7 @@ def import_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_operations.py
index d8289d74242f..9a39f7b161d3 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Iterable, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._serialization import Serializer
 from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,9 +40,7 @@ def build_list_request(**kwargs: Any) -> HttpRequest:
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -80,6 +73,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
@@ -93,8 +87,8 @@ def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_resource_provider_common_operations.py
index b70b072a6734..73e17c0a9e8b 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_07_01_preview/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -43,9 +38,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2019-07-01-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-07-01-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -54,7 +47,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -83,6 +76,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -106,8 +100,8 @@ def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuota
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-07-01-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2019-07-01-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2019-07-01-preview")
         )
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_configuration.py
index 30b6bfd41547..70ebec4213b5 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", "2019-11-04")
+        api_version: str = kwargs.pop("api_version", "2019-11-04")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_iot_hub_client.py
index b2b88890047e..395f3e50c2fe 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_iot_hub_client.py
@@ -69,13 +69,17 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2019-11-04")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-11-04"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2019-11-04"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-11-04"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize, "2019-11-04")
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/_configuration.py
index 48384170c1d7..fa5d535c37cf 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", "2019-11-04")
+        api_version: str = kwargs.pop("api_version", "2019-11-04")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/_iot_hub_client.py
index 8624d0a8e0e1..ce58461dd33f 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/_iot_hub_client.py
@@ -70,13 +70,17 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2019-11-04")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-11-04"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2019-11-04"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2019-11-04"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize, "2019-11-04")
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
         """Runs the network request through the client's chained policies.
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_certificates_operations.py
index 3eb32dbc6936..2888458c3857 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_verify_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list_by_iot_hub(
@@ -90,7 +87,7 @@ async def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -158,7 +155,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -315,14 +312,14 @@ async def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateBodyDescription")
@@ -403,7 +400,7 @@ async def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -472,7 +469,7 @@ async def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -631,14 +628,14 @@ async def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_iot_hub_operations.py
index 12052b01a526..b08dd921016d 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -30,10 +30,6 @@
 from ..._vendor import _convert_request
 from ...operations._iot_hub_operations import build_manual_failover_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +52,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     async def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -75,14 +72,14 @@ async def _manual_failover_initial(  # pylint: disable=inconsistent-return-state
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -241,7 +238,7 @@ async def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_iot_hub_resource_operations.py
index ac5d608520c0..5e714c02e6cc 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -57,10 +57,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -83,6 +79,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -110,7 +107,7 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -167,14 +164,14 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -361,7 +358,7 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -421,14 +418,14 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -581,7 +578,7 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -640,7 +637,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -716,7 +713,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -773,7 +770,7 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -861,7 +858,7 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -961,7 +958,7 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1021,7 +1018,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1120,7 +1117,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1227,7 +1224,7 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1300,7 +1297,7 @@ async def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -1373,7 +1370,7 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -1432,7 +1429,7 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1537,7 +1534,7 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -1598,7 +1595,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1692,7 +1689,7 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1835,14 +1832,14 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -1975,14 +1972,14 @@ async def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2117,14 +2114,14 @@ async def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2191,7 +2188,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2296,7 +2293,7 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -2446,14 +2443,14 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2607,14 +2604,14 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_operations.py
index 692c84a6afa0..bbde0f217924 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, AsyncIterable, Callable, Dict, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._vendor import _convert_request
 from ...operations._operations import build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +51,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
@@ -70,7 +66,7 @@ def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_resource_provider_common_operations.py
index a65eca2da694..e7954150fdae 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/aio/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._resource_provider_common_operations import build_get_subscription_quota_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -77,7 +73,7 @@ async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptio
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
         request = build_get_subscription_quota_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/models/_iot_hub_client_enums.py
index e59777721cda..2a2b2ef64ffa 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/models/_iot_hub_client_enums.py
@@ -133,6 +133,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class RouteErrorSeverity(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/models/_models_py3.py
index 0c47213e5270..b7fabb8d6652 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/models/_models_py3.py
@@ -1498,7 +1498,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2019_11_04.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_certificates_operations.py
index 91e377764807..bc59c177c8a1 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -26,12 +26,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +41,7 @@ def build_list_by_iot_hub_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -59,7 +55,7 @@ def build_list_by_iot_hub_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -76,7 +72,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -93,7 +89,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -116,7 +112,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -134,7 +130,7 @@ def build_create_or_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -161,7 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -202,7 +198,7 @@ def build_generate_verification_code_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -219,7 +215,7 @@ def build_generate_verification_code_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -243,7 +239,7 @@ def build_verify_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -261,7 +257,7 @@ def build_verify_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,6 +289,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list_by_iot_hub(
@@ -322,7 +319,7 @@ def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -390,7 +387,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -547,14 +544,14 @@ def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateBodyDescription")
@@ -635,7 +632,7 @@ def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -704,7 +701,7 @@ def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -863,14 +860,14 @@ def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_iot_hub_operations.py
index 921820b71dbf..e5b73a4f47d7 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_manual_failover_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -62,7 +58,7 @@ def build_manual_failover_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -93,6 +89,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -112,14 +109,14 @@ def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -278,7 +275,7 @@ def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_iot_hub_resource_operations.py
index 51d41fe52430..6561f4713497 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,7 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -93,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -114,7 +110,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -129,7 +125,7 @@ def build_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -148,7 +144,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -162,7 +158,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -177,7 +173,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +182,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -201,7 +197,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -214,7 +210,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -231,7 +227,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -245,7 +241,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -262,7 +258,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -276,7 +272,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,7 +289,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -308,7 +304,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -330,7 +326,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -346,7 +342,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -368,7 +364,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -384,7 +380,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -406,7 +402,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -422,7 +418,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -439,7 +435,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -453,7 +449,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -470,7 +466,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -485,7 +481,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -502,7 +498,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -516,7 +512,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -533,7 +529,7 @@ def build_get_endpoint_health_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -547,7 +543,7 @@ def build_get_endpoint_health_request(
         "iotHubName": _SERIALIZER.url("iot_hub_name", iot_hub_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -562,7 +558,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -574,7 +570,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -593,7 +589,7 @@ def build_test_all_routes_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -608,7 +604,7 @@ def build_test_all_routes_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -627,7 +623,7 @@ def build_test_route_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -642,7 +638,7 @@ def build_test_route_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -661,7 +657,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -675,7 +671,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -692,7 +688,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -707,7 +703,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -724,7 +720,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -739,7 +735,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -758,7 +754,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -773,7 +769,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -804,6 +800,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -831,7 +828,7 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -888,14 +885,14 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -1079,7 +1076,7 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1139,14 +1136,14 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -1296,7 +1293,7 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1355,7 +1352,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -1430,7 +1427,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -1486,7 +1483,7 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1571,7 +1568,7 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1669,7 +1666,7 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1729,7 +1726,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1828,7 +1825,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1935,7 +1932,7 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -2008,7 +2005,7 @@ def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -2081,7 +2078,7 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -2137,7 +2134,7 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2240,7 +2237,7 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -2301,7 +2298,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2394,7 +2391,7 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2537,14 +2534,14 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2677,14 +2674,14 @@ def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2819,14 +2816,14 @@ def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2893,7 +2890,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2998,7 +2995,7 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -3148,14 +3145,14 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -3309,14 +3306,14 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_operations.py
index 803f3276d616..555a7f665e02 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Iterable, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._serialization import Serializer
 from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +40,7 @@ def build_list_request(**kwargs: Any) -> HttpRequest:
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -78,6 +73,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
@@ -91,7 +87,7 @@ def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_resource_provider_common_operations.py
index 7c7ea00bd940..69f67e3b836e 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2019_11_04/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -43,7 +38,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -52,7 +47,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -81,6 +76,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -104,7 +100,7 @@ def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuota
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2019-11-04"] = kwargs.pop("api_version", _params.pop("api-version", "2019-11-04"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2019-11-04"))
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
         request = build_get_subscription_quota_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_configuration.py
index 28592c37893e..7f588d0b3874 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", "2020-03-01")
+        api_version: str = kwargs.pop("api_version", "2020-03-01")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_iot_hub_client.py
index 30641876e9b9..2c572660d7c3 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_iot_hub_client.py
@@ -77,18 +77,22 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2020-03-01")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2020-03-01"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2020-03-01"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2020-03-01"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize, "2020-03-01")
         self.private_link_resources = PrivateLinkResourcesOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2020-03-01"
         )
         self.private_endpoint_connections = PrivateEndpointConnectionsOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2020-03-01"
         )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/_configuration.py
index 308f9e521dc1..5d09ed364855 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", "2020-03-01")
+        api_version: str = kwargs.pop("api_version", "2020-03-01")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/_iot_hub_client.py
index 07823d7af8bf..6d5c11f73219 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/_iot_hub_client.py
@@ -78,18 +78,22 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2020-03-01")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2020-03-01"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2020-03-01"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2020-03-01"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize, "2020-03-01")
         self.private_link_resources = PrivateLinkResourcesOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2020-03-01"
         )
         self.private_endpoint_connections = PrivateEndpointConnectionsOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2020-03-01"
         )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_certificates_operations.py
index 42eae5610a37..c8632d7450f9 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_verify_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list_by_iot_hub(
@@ -90,7 +87,7 @@ async def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -158,7 +155,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -315,14 +312,14 @@ async def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateBodyDescription")
@@ -403,7 +400,7 @@ async def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -472,7 +469,7 @@ async def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -631,14 +628,14 @@ async def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_iot_hub_operations.py
index 082565e3380b..ebdb41af1982 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -30,10 +30,6 @@
 from ..._vendor import _convert_request
 from ...operations._iot_hub_operations import build_manual_failover_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +52,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     async def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -75,14 +72,14 @@ async def _manual_failover_initial(  # pylint: disable=inconsistent-return-state
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -241,7 +238,7 @@ async def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_iot_hub_resource_operations.py
index 63544e33c0ec..ed36608ee9a5 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -57,10 +57,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -83,6 +79,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -110,7 +107,7 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -167,14 +164,14 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -361,7 +358,7 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -421,14 +418,14 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -581,7 +578,7 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -640,7 +637,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -716,7 +713,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -773,7 +770,7 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -861,7 +858,7 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -961,7 +958,7 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1021,7 +1018,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1120,7 +1117,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1227,7 +1224,7 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1300,7 +1297,7 @@ async def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -1373,7 +1370,7 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -1432,7 +1429,7 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1537,7 +1534,7 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -1598,7 +1595,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1692,7 +1689,7 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1835,14 +1832,14 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -1975,14 +1972,14 @@ async def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2117,14 +2114,14 @@ async def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2191,7 +2188,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2296,7 +2293,7 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -2446,14 +2443,14 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2607,14 +2604,14 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_operations.py
index 99269c14696f..de642df03a74 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, AsyncIterable, Callable, Dict, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._vendor import _convert_request
 from ...operations._operations import build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +51,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
@@ -70,7 +66,7 @@ def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_private_endpoint_connections_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_private_endpoint_connections_operations.py
index afa0c1eb4dec..3fbe4eb0f5c5 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_private_endpoint_connections_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_private_endpoint_connections_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, List, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list(
@@ -90,7 +87,7 @@ async def list(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[List[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -158,7 +155,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -216,14 +213,14 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(private_endpoint_connection, (IO, bytes)):
+        if isinstance(private_endpoint_connection, (IOBase, bytes)):
             _content = private_endpoint_connection
         else:
             _json = self._serialize.body(private_endpoint_connection, "PrivateEndpointConnection")
@@ -399,7 +396,7 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -459,7 +456,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[Optional[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -534,7 +531,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_private_link_resources_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_private_link_resources_operations.py
index 9d141195b166..f1281326b9cd 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_private_link_resources_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_private_link_resources_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._private_link_resources_operations import build_get_request, build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.PrivateLinkResources:
@@ -81,7 +77,7 @@ async def list(self, resource_group_name: str, resource_name: str, **kwargs: Any
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.PrivateLinkResources] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -149,7 +145,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.GroupIdInformation] = kwargs.pop("cls", None)
 
         request = build_get_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_resource_provider_common_operations.py
index 049c87f2bb8a..c4be640fcd00 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/aio/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._resource_provider_common_operations import build_get_subscription_quota_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -77,7 +73,7 @@ async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptio
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
         request = build_get_subscription_quota_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/models/_iot_hub_client_enums.py
index c2b9398b02fd..79720b8e1e8d 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/models/_iot_hub_client_enums.py
@@ -140,6 +140,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class PrivateLinkServiceConnectionStatus(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/models/_models_py3.py
index 55d78598294e..d4daddb20061 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/models/_models_py3.py
@@ -1665,7 +1665,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2020_03_01.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_certificates_operations.py
index 119f00357707..dd89c491fd5f 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -26,12 +26,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +41,7 @@ def build_list_by_iot_hub_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -59,7 +55,7 @@ def build_list_by_iot_hub_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -76,7 +72,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -93,7 +89,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -116,7 +112,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -134,7 +130,7 @@ def build_create_or_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -161,7 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -202,7 +198,7 @@ def build_generate_verification_code_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -219,7 +215,7 @@ def build_generate_verification_code_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -243,7 +239,7 @@ def build_verify_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -261,7 +257,7 @@ def build_verify_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,6 +289,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list_by_iot_hub(
@@ -322,7 +319,7 @@ def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -390,7 +387,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -547,14 +544,14 @@ def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateBodyDescription")
@@ -635,7 +632,7 @@ def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -704,7 +701,7 @@ def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -863,14 +860,14 @@ def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_iot_hub_operations.py
index 4ae4b10bc90d..2ece5df38a2b 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_manual_failover_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -62,7 +58,7 @@ def build_manual_failover_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -93,6 +89,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -112,14 +109,14 @@ def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -278,7 +275,7 @@ def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_iot_hub_resource_operations.py
index 645b5628748d..a0282abe3fbf 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,7 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -93,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -114,7 +110,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -129,7 +125,7 @@ def build_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -148,7 +144,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -162,7 +158,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -177,7 +173,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +182,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -201,7 +197,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -214,7 +210,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -231,7 +227,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -245,7 +241,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -262,7 +258,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -276,7 +272,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,7 +289,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -308,7 +304,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -330,7 +326,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -346,7 +342,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -368,7 +364,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -384,7 +380,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -406,7 +402,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -422,7 +418,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -439,7 +435,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -453,7 +449,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -470,7 +466,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -485,7 +481,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -502,7 +498,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -516,7 +512,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -533,7 +529,7 @@ def build_get_endpoint_health_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -547,7 +543,7 @@ def build_get_endpoint_health_request(
         "iotHubName": _SERIALIZER.url("iot_hub_name", iot_hub_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -562,7 +558,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -574,7 +570,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -593,7 +589,7 @@ def build_test_all_routes_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -608,7 +604,7 @@ def build_test_all_routes_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -627,7 +623,7 @@ def build_test_route_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -642,7 +638,7 @@ def build_test_route_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -661,7 +657,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -675,7 +671,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -692,7 +688,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -707,7 +703,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -724,7 +720,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -739,7 +735,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -758,7 +754,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -773,7 +769,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -804,6 +800,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -831,7 +828,7 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -888,14 +885,14 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -1079,7 +1076,7 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1139,14 +1136,14 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -1296,7 +1293,7 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1355,7 +1352,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -1430,7 +1427,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -1486,7 +1483,7 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1571,7 +1568,7 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1669,7 +1666,7 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1729,7 +1726,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1828,7 +1825,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1935,7 +1932,7 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -2008,7 +2005,7 @@ def create_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_create_event_hub_consumer_group_request(
@@ -2081,7 +2078,7 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -2137,7 +2134,7 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2240,7 +2237,7 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -2301,7 +2298,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2394,7 +2391,7 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2537,14 +2534,14 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2677,14 +2674,14 @@ def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2819,14 +2816,14 @@ def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2893,7 +2890,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2998,7 +2995,7 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -3148,14 +3145,14 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -3309,14 +3306,14 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_operations.py
index ca502b509ad4..732bab62ae02 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Iterable, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._serialization import Serializer
 from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +40,7 @@ def build_list_request(**kwargs: Any) -> HttpRequest:
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -78,6 +73,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
@@ -91,7 +87,7 @@ def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_private_endpoint_connections_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_private_endpoint_connections_operations.py
index 7ba30dfcb432..bd1330a1960a 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_private_endpoint_connections_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_private_endpoint_connections_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, List, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_list_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_list_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -82,7 +78,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -99,7 +95,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -120,7 +116,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -138,7 +134,7 @@ def build_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -161,7 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -207,6 +203,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(
@@ -236,7 +233,7 @@ def list(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[List[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -304,7 +301,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -362,14 +359,14 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(private_endpoint_connection, (IO, bytes)):
+        if isinstance(private_endpoint_connection, (IOBase, bytes)):
             _content = private_endpoint_connection
         else:
             _json = self._serialize.body(private_endpoint_connection, "PrivateEndpointConnection")
@@ -545,7 +542,7 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -605,7 +602,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[Optional[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -680,7 +677,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_private_link_resources_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_private_link_resources_operations.py
index ea3002a3de7e..68ae270ceac9 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_private_link_resources_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_private_link_resources_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +40,7 @@ def build_list_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -59,7 +54,7 @@ def build_list_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -76,7 +71,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -91,7 +86,7 @@ def build_get_request(
         "groupId": _SERIALIZER.url("group_id", group_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -120,6 +115,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.PrivateLinkResources:
@@ -147,7 +143,7 @@ def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.PrivateLinkResources] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -215,7 +211,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.GroupIdInformation] = kwargs.pop("cls", None)
 
         request = build_get_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_resource_provider_common_operations.py
index b759deb4b7c8..b512f8115173 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2020_03_01/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -43,7 +38,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -52,7 +47,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -81,6 +76,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -104,7 +100,7 @@ def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuota
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2020-03-01"] = kwargs.pop("api_version", _params.pop("api-version", "2020-03-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2020-03-01"))
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
         request = build_get_subscription_quota_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_configuration.py
index 28a068897dd5..8fb9e914e732 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop("api_version", "2021-03-03-preview")
+        api_version: str = kwargs.pop("api_version", "2021-03-03-preview")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_iot_hub_client.py
index f3b52f38407b..0381c046d4e5 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_iot_hub_client.py
@@ -78,18 +78,26 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-03-preview"
+        )
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-03-preview"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-03-preview"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-03-preview"
+        )
+        self.iot_hub = IotHubOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-03-preview"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
         self.private_link_resources = PrivateLinkResourcesOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-03-preview"
         )
         self.private_endpoint_connections = PrivateEndpointConnectionsOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-03-preview"
         )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/_configuration.py
index 4c79a7fffbcb..e18805b40afc 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop("api_version", "2021-03-03-preview")
+        api_version: str = kwargs.pop("api_version", "2021-03-03-preview")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/_iot_hub_client.py
index 3c5764fab43f..adfddddde828 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/_iot_hub_client.py
@@ -79,18 +79,26 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-03-preview"
+        )
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-03-preview"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-03-preview"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-03-preview"
+        )
+        self.iot_hub = IotHubOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-03-preview"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
         self.private_link_resources = PrivateLinkResourcesOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-03-preview"
         )
         self.private_endpoint_connections = PrivateEndpointConnectionsOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-03-preview"
         )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_certificates_operations.py
index 828fc8913839..a1909fb788e9 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_verify_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list_by_iot_hub(
@@ -90,8 +87,8 @@ async def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
@@ -160,8 +157,8 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
@@ -320,8 +317,8 @@ async def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -329,7 +326,7 @@ async def create_or_update(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateDescription")
@@ -410,8 +407,8 @@ async def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -481,8 +478,8 @@ async def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
@@ -642,8 +639,8 @@ async def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -651,7 +648,7 @@ async def verify(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_iot_hub_operations.py
index e0f21467306d..b00cd27528f5 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -30,10 +30,6 @@
 from ..._vendor import _convert_request
 from ...operations._iot_hub_operations import build_manual_failover_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +52,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     async def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -75,8 +72,8 @@ async def _manual_failover_initial(  # pylint: disable=inconsistent-return-state
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
@@ -84,7 +81,7 @@ async def _manual_failover_initial(  # pylint: disable=inconsistent-return-state
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -243,8 +240,8 @@ async def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_iot_hub_resource_operations.py
index 3c4f31a090bc..4ff21797502d 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -57,10 +57,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -83,6 +79,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -110,8 +107,8 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
@@ -169,8 +166,8 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -178,7 +175,7 @@ async def _create_or_update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -360,8 +357,8 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -422,8 +419,8 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -431,7 +428,7 @@ async def _update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -584,8 +581,8 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -645,8 +642,8 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
@@ -724,8 +721,8 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -783,8 +780,8 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -873,8 +870,8 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -975,8 +972,8 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
@@ -1037,8 +1034,8 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1138,8 +1135,8 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
@@ -1247,8 +1244,8 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
@@ -1408,8 +1405,8 @@ async def create_event_hub_consumer_group(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
@@ -1417,7 +1414,7 @@ async def create_event_hub_consumer_group(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(consumer_group_body, (IO, bytes)):
+        if isinstance(consumer_group_body, (IOBase, bytes)):
             _content = consumer_group_body
         else:
             _json = self._serialize.body(consumer_group_body, "EventHubConsumerGroupBodyDescription")
@@ -1495,8 +1492,8 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -1556,8 +1553,8 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
@@ -1663,8 +1660,8 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
@@ -1726,8 +1723,8 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
@@ -1822,8 +1819,8 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
@@ -1967,8 +1964,8 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
@@ -1976,7 +1973,7 @@ async def check_name_availability(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2109,8 +2106,8 @@ async def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
@@ -2118,7 +2115,7 @@ async def test_all_routes(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2253,8 +2250,8 @@ async def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
@@ -2262,7 +2259,7 @@ async def test_route(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2329,8 +2326,8 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
@@ -2436,8 +2433,8 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
@@ -2589,8 +2586,8 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -2598,7 +2595,7 @@ async def export_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2753,8 +2750,8 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -2762,7 +2759,7 @@ async def import_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_operations.py
index 85a38f9a08f0..f6586471b6d0 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, AsyncIterable, Callable, Dict, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._vendor import _convert_request
 from ...operations._operations import build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +51,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
@@ -70,8 +66,8 @@ def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_private_endpoint_connections_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_private_endpoint_connections_operations.py
index 9539dfaa9da4..e09814ee2651 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_private_endpoint_connections_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_private_endpoint_connections_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, List, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list(
@@ -90,8 +87,8 @@ async def list(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[List[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
@@ -160,8 +157,8 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
@@ -220,8 +217,8 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
@@ -229,7 +226,7 @@ async def _update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(private_endpoint_connection, (IO, bytes)):
+        if isinstance(private_endpoint_connection, (IOBase, bytes)):
             _content = private_endpoint_connection
         else:
             _json = self._serialize.body(private_endpoint_connection, "PrivateEndpointConnection")
@@ -405,8 +402,8 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
@@ -467,8 +464,8 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[Optional[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
@@ -544,8 +541,8 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_private_link_resources_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_private_link_resources_operations.py
index df8ebb87ebdf..bf8840492bcf 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_private_link_resources_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_private_link_resources_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._private_link_resources_operations import build_get_request, build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.PrivateLinkResources:
@@ -81,8 +77,8 @@ async def list(self, resource_group_name: str, resource_name: str, **kwargs: Any
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.PrivateLinkResources] = kwargs.pop("cls", None)
 
@@ -151,8 +147,8 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.GroupIdInformation] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_resource_provider_common_operations.py
index d1f153943e75..79692353d928 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/aio/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._resource_provider_common_operations import build_get_subscription_quota_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -77,8 +73,8 @@ async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptio
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/models/_iot_hub_client_enums.py
index ee6a65a17273..4bc2b2973e9c 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/models/_iot_hub_client_enums.py
@@ -148,6 +148,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class NetworkRuleIPAction(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/models/_models_py3.py
index 590069a2e493..bb0040fc2cd1 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/models/_models_py3.py
@@ -1935,7 +1935,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2021_03_03_preview.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_certificates_operations.py
index f294cc0f17f1..024138b7b246 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -26,12 +26,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,9 +41,7 @@ def build_list_by_iot_hub_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +55,7 @@ def build_list_by_iot_hub_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,9 +72,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -97,7 +89,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -120,9 +112,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -140,7 +130,7 @@ def build_create_or_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -167,9 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -210,9 +198,7 @@ def build_generate_verification_code_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -229,7 +215,7 @@ def build_generate_verification_code_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -253,9 +239,7 @@ def build_verify_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -273,7 +257,7 @@ def build_verify_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -305,6 +289,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list_by_iot_hub(
@@ -334,8 +319,8 @@ def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
@@ -404,8 +389,8 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
@@ -564,8 +549,8 @@ def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -573,7 +558,7 @@ def create_or_update(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateDescription")
@@ -654,8 +639,8 @@ def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -725,8 +710,8 @@ def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
@@ -886,8 +871,8 @@ def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -895,7 +880,7 @@ def verify(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_iot_hub_operations.py
index c54a23df4635..ca854ed4cef6 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,9 +43,7 @@ def build_manual_failover_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -64,7 +58,7 @@ def build_manual_failover_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -95,6 +89,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -114,8 +109,8 @@ def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
@@ -123,7 +118,7 @@ def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -282,8 +277,8 @@ def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_iot_hub_resource_operations.py
index 20744b885f42..b9441588d65e 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,9 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -63,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -80,9 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -97,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -118,9 +110,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -135,7 +125,7 @@ def build_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -154,9 +144,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -170,7 +158,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -185,9 +173,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -196,7 +182,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -211,9 +197,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -226,7 +210,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -243,9 +227,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -259,7 +241,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -276,9 +258,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -292,7 +272,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -309,9 +289,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -326,7 +304,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -348,9 +326,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -366,7 +342,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -388,9 +364,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -407,7 +381,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -431,9 +405,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -449,7 +421,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -466,9 +438,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -482,7 +452,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -499,9 +469,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -516,7 +484,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -533,9 +501,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -549,7 +515,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -566,9 +532,7 @@ def build_get_endpoint_health_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -582,7 +546,7 @@ def build_get_endpoint_health_request(
         "iotHubName": _SERIALIZER.url("iot_hub_name", iot_hub_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -597,9 +561,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -611,7 +573,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -630,9 +592,7 @@ def build_test_all_routes_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -647,7 +607,7 @@ def build_test_all_routes_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -666,9 +626,7 @@ def build_test_route_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -683,7 +641,7 @@ def build_test_route_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -702,9 +660,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -718,7 +674,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -735,9 +691,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -752,7 +706,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -769,9 +723,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -786,7 +738,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -805,9 +757,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -822,7 +772,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -853,6 +803,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -880,8 +831,8 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
@@ -939,8 +890,8 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -948,7 +899,7 @@ def _create_or_update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -1130,8 +1081,8 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -1192,8 +1143,8 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -1201,7 +1152,7 @@ def _update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -1354,8 +1305,8 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -1415,8 +1366,8 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
@@ -1493,8 +1444,8 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1552,8 +1503,8 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1640,8 +1591,8 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1740,8 +1691,8 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
@@ -1802,8 +1753,8 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1903,8 +1854,8 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
@@ -2012,8 +1963,8 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
@@ -2173,8 +2124,8 @@ def create_event_hub_consumer_group(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
@@ -2182,7 +2133,7 @@ def create_event_hub_consumer_group(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(consumer_group_body, (IO, bytes)):
+        if isinstance(consumer_group_body, (IOBase, bytes)):
             _content = consumer_group_body
         else:
             _json = self._serialize.body(consumer_group_body, "EventHubConsumerGroupBodyDescription")
@@ -2260,8 +2211,8 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -2318,8 +2269,8 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
@@ -2423,8 +2374,8 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
@@ -2486,8 +2437,8 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
@@ -2582,8 +2533,8 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
@@ -2727,8 +2678,8 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
@@ -2736,7 +2687,7 @@ def check_name_availability(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2869,8 +2820,8 @@ def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
@@ -2878,7 +2829,7 @@ def test_all_routes(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -3013,8 +2964,8 @@ def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
@@ -3022,7 +2973,7 @@ def test_route(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -3089,8 +3040,8 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
@@ -3196,8 +3147,8 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
@@ -3349,8 +3300,8 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -3358,7 +3309,7 @@ def export_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -3513,8 +3464,8 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -3522,7 +3473,7 @@ def import_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_operations.py
index 7b56cfcfd859..f35d807fb90e 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Iterable, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._serialization import Serializer
 from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,9 +40,7 @@ def build_list_request(**kwargs: Any) -> HttpRequest:
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -80,6 +73,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
@@ -93,8 +87,8 @@ def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_private_endpoint_connections_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_private_endpoint_connections_operations.py
index a894f9dc221e..24223692dfdd 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_private_endpoint_connections_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_private_endpoint_connections_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, List, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,9 +43,7 @@ def build_list_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -63,7 +57,7 @@ def build_list_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -84,9 +78,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -103,7 +95,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -124,9 +116,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -144,7 +134,7 @@ def build_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -167,9 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -215,6 +203,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(
@@ -244,8 +233,8 @@ def list(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[List[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
@@ -314,8 +303,8 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
@@ -374,8 +363,8 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
@@ -383,7 +372,7 @@ def _update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(private_endpoint_connection, (IO, bytes)):
+        if isinstance(private_endpoint_connection, (IOBase, bytes)):
             _content = private_endpoint_connection
         else:
             _json = self._serialize.body(private_endpoint_connection, "PrivateEndpointConnection")
@@ -559,8 +548,8 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
@@ -621,8 +610,8 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[Optional[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
@@ -698,8 +687,8 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_private_link_resources_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_private_link_resources_operations.py
index b3d57c92b90b..32163dfede1f 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_private_link_resources_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_private_link_resources_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,9 +40,7 @@ def build_list_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +54,7 @@ def build_list_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,9 +71,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -95,7 +86,7 @@ def build_get_request(
         "groupId": _SERIALIZER.url("group_id", group_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -124,6 +115,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.PrivateLinkResources:
@@ -151,8 +143,8 @@ def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.PrivateLinkResources] = kwargs.pop("cls", None)
 
@@ -221,8 +213,8 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.GroupIdInformation] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_resource_provider_common_operations.py
index 9d50f7401bac..2b5f4c3b9851 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_03_preview/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -43,9 +38,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2021-03-03-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-03-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -54,7 +47,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -83,6 +76,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -106,8 +100,8 @@ def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuota
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-03-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2021-03-03-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2021-03-03-preview")
         )
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_configuration.py
index dd7091ed780e..0ecb3d75836c 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", "2021-03-31")
+        api_version: str = kwargs.pop("api_version", "2021-03-31")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_iot_hub_client.py
index ac53f968910c..3bc7d3ada88d 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_iot_hub_client.py
@@ -77,18 +77,22 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2021-03-31")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-31"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-31"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-31"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize, "2021-03-31")
         self.private_link_resources = PrivateLinkResourcesOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-31"
         )
         self.private_endpoint_connections = PrivateEndpointConnectionsOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-31"
         )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/_configuration.py
index bb36811bb171..804d5a3a2545 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", "2021-03-31")
+        api_version: str = kwargs.pop("api_version", "2021-03-31")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/_iot_hub_client.py
index 18aa85db39e7..81b9edf3b27c 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/_iot_hub_client.py
@@ -78,18 +78,22 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2021-03-31")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-31"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-31"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-31"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize, "2021-03-31")
         self.private_link_resources = PrivateLinkResourcesOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-31"
         )
         self.private_endpoint_connections = PrivateEndpointConnectionsOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-03-31"
         )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_certificates_operations.py
index 064b1035331a..400ee3c1de8f 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_verify_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list_by_iot_hub(
@@ -90,7 +87,7 @@ async def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -158,7 +155,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -315,14 +312,14 @@ async def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateDescription")
@@ -403,7 +400,7 @@ async def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -472,7 +469,7 @@ async def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -631,14 +628,14 @@ async def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_iot_hub_operations.py
index ef0e6027cfe6..9004b2035ab2 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -30,10 +30,6 @@
 from ..._vendor import _convert_request
 from ...operations._iot_hub_operations import build_manual_failover_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +52,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     async def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -75,14 +72,14 @@ async def _manual_failover_initial(  # pylint: disable=inconsistent-return-state
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -241,7 +238,7 @@ async def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_iot_hub_resource_operations.py
index 30a46702706a..5873a9448628 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -57,10 +57,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -83,6 +79,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -110,7 +107,7 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -167,14 +164,14 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -361,7 +358,7 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -421,14 +418,14 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -581,7 +578,7 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -640,7 +637,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -716,7 +713,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -773,7 +770,7 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -861,7 +858,7 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -961,7 +958,7 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1021,7 +1018,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1120,7 +1117,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1227,7 +1224,7 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1386,14 +1383,14 @@ async def create_event_hub_consumer_group(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(consumer_group_body, (IO, bytes)):
+        if isinstance(consumer_group_body, (IOBase, bytes)):
             _content = consumer_group_body
         else:
             _json = self._serialize.body(consumer_group_body, "EventHubConsumerGroupBodyDescription")
@@ -1471,7 +1468,7 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -1530,7 +1527,7 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1635,7 +1632,7 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -1696,7 +1693,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1790,7 +1787,7 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1933,14 +1930,14 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2073,14 +2070,14 @@ async def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2215,14 +2212,14 @@ async def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2289,7 +2286,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2394,7 +2391,7 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -2544,14 +2541,14 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2705,14 +2702,14 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_operations.py
index 4f7cbc6cef22..6e03c765cafa 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, AsyncIterable, Callable, Dict, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._vendor import _convert_request
 from ...operations._operations import build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +51,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
@@ -70,7 +66,7 @@ def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_private_endpoint_connections_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_private_endpoint_connections_operations.py
index 8ab6669135c4..2dd4e9fe0bc4 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_private_endpoint_connections_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_private_endpoint_connections_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, List, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list(
@@ -90,7 +87,7 @@ async def list(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[List[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -158,7 +155,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -216,14 +213,14 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(private_endpoint_connection, (IO, bytes)):
+        if isinstance(private_endpoint_connection, (IOBase, bytes)):
             _content = private_endpoint_connection
         else:
             _json = self._serialize.body(private_endpoint_connection, "PrivateEndpointConnection")
@@ -399,7 +396,7 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -459,7 +456,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[Optional[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -534,7 +531,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_private_link_resources_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_private_link_resources_operations.py
index d8db197dee64..c51013ed947b 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_private_link_resources_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_private_link_resources_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._private_link_resources_operations import build_get_request, build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.PrivateLinkResources:
@@ -81,7 +77,7 @@ async def list(self, resource_group_name: str, resource_name: str, **kwargs: Any
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.PrivateLinkResources] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -149,7 +145,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.GroupIdInformation] = kwargs.pop("cls", None)
 
         request = build_get_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_resource_provider_common_operations.py
index d43949d0404c..0f48265c2491 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/aio/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._resource_provider_common_operations import build_get_subscription_quota_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -77,7 +73,7 @@ async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptio
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
         request = build_get_subscription_quota_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/models/_iot_hub_client_enums.py
index 582048bfa653..4d9507b40cc5 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/models/_iot_hub_client_enums.py
@@ -148,6 +148,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class NetworkRuleIPAction(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/models/_models_py3.py
index 4fd683d8042a..293d7c1abd72 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/models/_models_py3.py
@@ -1893,7 +1893,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2021_03_31.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_certificates_operations.py
index f580150e1b5e..96bb1cd45186 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -26,12 +26,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +41,7 @@ def build_list_by_iot_hub_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -59,7 +55,7 @@ def build_list_by_iot_hub_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -76,7 +72,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -93,7 +89,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -116,7 +112,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -134,7 +130,7 @@ def build_create_or_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -161,7 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -202,7 +198,7 @@ def build_generate_verification_code_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -219,7 +215,7 @@ def build_generate_verification_code_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -243,7 +239,7 @@ def build_verify_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -261,7 +257,7 @@ def build_verify_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,6 +289,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list_by_iot_hub(
@@ -322,7 +319,7 @@ def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -390,7 +387,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -547,14 +544,14 @@ def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateDescription")
@@ -635,7 +632,7 @@ def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -704,7 +701,7 @@ def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -863,14 +860,14 @@ def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_iot_hub_operations.py
index 973c93294e21..1efbe4e75369 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_manual_failover_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -62,7 +58,7 @@ def build_manual_failover_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -93,6 +89,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -112,14 +109,14 @@ def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -278,7 +275,7 @@ def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_iot_hub_resource_operations.py
index 776ee3db5902..dbd36ba36034 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,7 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -93,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -114,7 +110,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -129,7 +125,7 @@ def build_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -148,7 +144,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -162,7 +158,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -177,7 +173,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +182,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -201,7 +197,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -214,7 +210,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -231,7 +227,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -245,7 +241,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -262,7 +258,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -276,7 +272,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,7 +289,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -308,7 +304,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -330,7 +326,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -346,7 +342,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -368,7 +364,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -385,7 +381,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -409,7 +405,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -425,7 +421,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -442,7 +438,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -456,7 +452,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -473,7 +469,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -488,7 +484,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -505,7 +501,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -519,7 +515,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -536,7 +532,7 @@ def build_get_endpoint_health_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -550,7 +546,7 @@ def build_get_endpoint_health_request(
         "iotHubName": _SERIALIZER.url("iot_hub_name", iot_hub_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -565,7 +561,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -577,7 +573,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -596,7 +592,7 @@ def build_test_all_routes_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -611,7 +607,7 @@ def build_test_all_routes_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -630,7 +626,7 @@ def build_test_route_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -645,7 +641,7 @@ def build_test_route_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -664,7 +660,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -678,7 +674,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -695,7 +691,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -710,7 +706,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -727,7 +723,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -742,7 +738,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -761,7 +757,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -776,7 +772,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -807,6 +803,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -834,7 +831,7 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -891,14 +888,14 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -1082,7 +1079,7 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1142,14 +1139,14 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -1299,7 +1296,7 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1358,7 +1355,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -1433,7 +1430,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -1489,7 +1486,7 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1574,7 +1571,7 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1672,7 +1669,7 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1732,7 +1729,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1831,7 +1828,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1938,7 +1935,7 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -2097,14 +2094,14 @@ def create_event_hub_consumer_group(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(consumer_group_body, (IO, bytes)):
+        if isinstance(consumer_group_body, (IOBase, bytes)):
             _content = consumer_group_body
         else:
             _json = self._serialize.body(consumer_group_body, "EventHubConsumerGroupBodyDescription")
@@ -2182,7 +2179,7 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -2238,7 +2235,7 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2341,7 +2338,7 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -2402,7 +2399,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2495,7 +2492,7 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2638,14 +2635,14 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2778,14 +2775,14 @@ def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2920,14 +2917,14 @@ def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2994,7 +2991,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -3099,7 +3096,7 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -3249,14 +3246,14 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -3410,14 +3407,14 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_operations.py
index 64c7a28f8192..ebe46b1410b0 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Iterable, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._serialization import Serializer
 from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +40,7 @@ def build_list_request(**kwargs: Any) -> HttpRequest:
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -78,6 +73,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
@@ -91,7 +87,7 @@ def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_private_endpoint_connections_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_private_endpoint_connections_operations.py
index a7591f71ee87..c527e3d93265 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_private_endpoint_connections_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_private_endpoint_connections_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, List, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_list_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_list_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -82,7 +78,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -99,7 +95,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -120,7 +116,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -138,7 +134,7 @@ def build_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -161,7 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -207,6 +203,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(
@@ -236,7 +233,7 @@ def list(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[List[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -304,7 +301,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -362,14 +359,14 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(private_endpoint_connection, (IO, bytes)):
+        if isinstance(private_endpoint_connection, (IOBase, bytes)):
             _content = private_endpoint_connection
         else:
             _json = self._serialize.body(private_endpoint_connection, "PrivateEndpointConnection")
@@ -545,7 +542,7 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -605,7 +602,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[Optional[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -680,7 +677,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_private_link_resources_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_private_link_resources_operations.py
index 77a93a2862c2..d84324aedee2 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_private_link_resources_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_private_link_resources_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +40,7 @@ def build_list_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -59,7 +54,7 @@ def build_list_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -76,7 +71,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -91,7 +86,7 @@ def build_get_request(
         "groupId": _SERIALIZER.url("group_id", group_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -120,6 +115,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.PrivateLinkResources:
@@ -147,7 +143,7 @@ def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.PrivateLinkResources] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -215,7 +211,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.GroupIdInformation] = kwargs.pop("cls", None)
 
         request = build_get_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_resource_provider_common_operations.py
index 813bd13e510b..ea5402089bfb 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_03_31/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -43,7 +38,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -52,7 +47,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -81,6 +76,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -104,7 +100,7 @@ def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuota
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-03-31"] = kwargs.pop("api_version", _params.pop("api-version", "2021-03-31"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-03-31"))
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
         request = build_get_subscription_quota_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_configuration.py
index a39f0d6e4b55..60d9f40def5d 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", "2021-07-01")
+        api_version: str = kwargs.pop("api_version", "2021-07-01")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_iot_hub_client.py
index 06fa09520f3c..d5d212bcc89e 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_iot_hub_client.py
@@ -77,18 +77,22 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2021-07-01")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-01"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-01"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-01"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize, "2021-07-01")
         self.private_link_resources = PrivateLinkResourcesOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-01"
         )
         self.private_endpoint_connections = PrivateEndpointConnectionsOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-01"
         )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/_configuration.py
index 2b857a5926f4..2e808994cc82 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", "2021-07-01")
+        api_version: str = kwargs.pop("api_version", "2021-07-01")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/_iot_hub_client.py
index 2dc51d6b16cf..2784b43ea2ac 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/_iot_hub_client.py
@@ -78,18 +78,22 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2021-07-01")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-01"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-01"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-01"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize, "2021-07-01")
         self.private_link_resources = PrivateLinkResourcesOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-01"
         )
         self.private_endpoint_connections = PrivateEndpointConnectionsOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-01"
         )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_certificates_operations.py
index eec796fe45dd..aa41d5f57a81 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_verify_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list_by_iot_hub(
@@ -90,7 +87,7 @@ async def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -158,7 +155,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -315,14 +312,14 @@ async def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateDescription")
@@ -403,7 +400,7 @@ async def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -472,7 +469,7 @@ async def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -631,14 +628,14 @@ async def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_iot_hub_operations.py
index 4ab59ce55e21..b6975c1d2e80 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -30,10 +30,6 @@
 from ..._vendor import _convert_request
 from ...operations._iot_hub_operations import build_manual_failover_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +52,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     async def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -75,14 +72,14 @@ async def _manual_failover_initial(  # pylint: disable=inconsistent-return-state
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -241,7 +238,7 @@ async def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_iot_hub_resource_operations.py
index 0a935f147451..a8144ee7d8eb 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -57,10 +57,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -83,6 +79,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -110,7 +107,7 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -167,14 +164,14 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -361,7 +358,7 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -421,14 +418,14 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -581,7 +578,7 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -640,7 +637,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -716,7 +713,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -773,7 +770,7 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -861,7 +858,7 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -961,7 +958,7 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1021,7 +1018,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1120,7 +1117,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1227,7 +1224,7 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1386,14 +1383,14 @@ async def create_event_hub_consumer_group(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(consumer_group_body, (IO, bytes)):
+        if isinstance(consumer_group_body, (IOBase, bytes)):
             _content = consumer_group_body
         else:
             _json = self._serialize.body(consumer_group_body, "EventHubConsumerGroupBodyDescription")
@@ -1471,7 +1468,7 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -1530,7 +1527,7 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1635,7 +1632,7 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -1696,7 +1693,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1790,7 +1787,7 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1933,14 +1930,14 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2073,14 +2070,14 @@ async def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2215,14 +2212,14 @@ async def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2289,7 +2286,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2394,7 +2391,7 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -2544,14 +2541,14 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2705,14 +2702,14 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_operations.py
index 49f6267df7bb..1aab95635061 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, AsyncIterable, Callable, Dict, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._vendor import _convert_request
 from ...operations._operations import build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +51,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
@@ -70,7 +66,7 @@ def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_private_endpoint_connections_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_private_endpoint_connections_operations.py
index 57e9be3b5662..cc8744e51e33 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_private_endpoint_connections_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_private_endpoint_connections_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, List, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list(
@@ -90,7 +87,7 @@ async def list(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[List[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -158,7 +155,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -216,14 +213,14 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(private_endpoint_connection, (IO, bytes)):
+        if isinstance(private_endpoint_connection, (IOBase, bytes)):
             _content = private_endpoint_connection
         else:
             _json = self._serialize.body(private_endpoint_connection, "PrivateEndpointConnection")
@@ -399,7 +396,7 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -459,7 +456,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[Optional[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -534,7 +531,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_private_link_resources_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_private_link_resources_operations.py
index cbee173d62d7..2449c632c368 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_private_link_resources_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_private_link_resources_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._private_link_resources_operations import build_get_request, build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.PrivateLinkResources:
@@ -81,7 +77,7 @@ async def list(self, resource_group_name: str, resource_name: str, **kwargs: Any
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.PrivateLinkResources] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -149,7 +145,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.GroupIdInformation] = kwargs.pop("cls", None)
 
         request = build_get_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_resource_provider_common_operations.py
index 4be27189cb98..4dfaaf86943e 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/aio/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._resource_provider_common_operations import build_get_subscription_quota_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -77,7 +73,7 @@ async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptio
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
         request = build_get_subscription_quota_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/models/_iot_hub_client_enums.py
index 582048bfa653..4d9507b40cc5 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/models/_iot_hub_client_enums.py
@@ -148,6 +148,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class NetworkRuleIPAction(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/models/_models_py3.py
index 6f3451b6eec9..626371628752 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/models/_models_py3.py
@@ -1947,7 +1947,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2021_07_01.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_certificates_operations.py
index a010eacde859..cd34a0515309 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -26,12 +26,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +41,7 @@ def build_list_by_iot_hub_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -59,7 +55,7 @@ def build_list_by_iot_hub_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -76,7 +72,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -93,7 +89,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -116,7 +112,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -134,7 +130,7 @@ def build_create_or_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -161,7 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -202,7 +198,7 @@ def build_generate_verification_code_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -219,7 +215,7 @@ def build_generate_verification_code_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -243,7 +239,7 @@ def build_verify_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -261,7 +257,7 @@ def build_verify_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,6 +289,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list_by_iot_hub(
@@ -322,7 +319,7 @@ def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -390,7 +387,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -547,14 +544,14 @@ def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateDescription")
@@ -635,7 +632,7 @@ def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -704,7 +701,7 @@ def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -863,14 +860,14 @@ def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_iot_hub_operations.py
index 8ad5413bf393..96ae5f3d2e99 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_manual_failover_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -62,7 +58,7 @@ def build_manual_failover_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -93,6 +89,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -112,14 +109,14 @@ def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -278,7 +275,7 @@ def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_iot_hub_resource_operations.py
index fe0dbb79d65b..be199fe92250 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,7 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -93,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -114,7 +110,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -129,7 +125,7 @@ def build_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -148,7 +144,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -162,7 +158,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -177,7 +173,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +182,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -201,7 +197,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -214,7 +210,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -231,7 +227,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -245,7 +241,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -262,7 +258,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -276,7 +272,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,7 +289,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -308,7 +304,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -330,7 +326,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -346,7 +342,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -368,7 +364,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -385,7 +381,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -409,7 +405,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -425,7 +421,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -442,7 +438,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -456,7 +452,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -473,7 +469,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -488,7 +484,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -505,7 +501,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -519,7 +515,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -536,7 +532,7 @@ def build_get_endpoint_health_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -550,7 +546,7 @@ def build_get_endpoint_health_request(
         "iotHubName": _SERIALIZER.url("iot_hub_name", iot_hub_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -565,7 +561,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -577,7 +573,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -596,7 +592,7 @@ def build_test_all_routes_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -611,7 +607,7 @@ def build_test_all_routes_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -630,7 +626,7 @@ def build_test_route_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -645,7 +641,7 @@ def build_test_route_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -664,7 +660,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -678,7 +674,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -695,7 +691,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -710,7 +706,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -727,7 +723,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -742,7 +738,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -761,7 +757,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -776,7 +772,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -807,6 +803,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -834,7 +831,7 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -891,14 +888,14 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -1082,7 +1079,7 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1142,14 +1139,14 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -1299,7 +1296,7 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1358,7 +1355,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -1433,7 +1430,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -1489,7 +1486,7 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1574,7 +1571,7 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1672,7 +1669,7 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1732,7 +1729,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1831,7 +1828,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1938,7 +1935,7 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -2097,14 +2094,14 @@ def create_event_hub_consumer_group(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(consumer_group_body, (IO, bytes)):
+        if isinstance(consumer_group_body, (IOBase, bytes)):
             _content = consumer_group_body
         else:
             _json = self._serialize.body(consumer_group_body, "EventHubConsumerGroupBodyDescription")
@@ -2182,7 +2179,7 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -2238,7 +2235,7 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2341,7 +2338,7 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -2402,7 +2399,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2495,7 +2492,7 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2638,14 +2635,14 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2778,14 +2775,14 @@ def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2920,14 +2917,14 @@ def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2994,7 +2991,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -3099,7 +3096,7 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -3249,14 +3246,14 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -3410,14 +3407,14 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_operations.py
index eb5e7f4cc4cf..8e59822bea42 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Iterable, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._serialization import Serializer
 from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +40,7 @@ def build_list_request(**kwargs: Any) -> HttpRequest:
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -78,6 +73,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
@@ -91,7 +87,7 @@ def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_private_endpoint_connections_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_private_endpoint_connections_operations.py
index def772be4951..53bd5c820636 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_private_endpoint_connections_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_private_endpoint_connections_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, List, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_list_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_list_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -82,7 +78,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -99,7 +95,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -120,7 +116,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -138,7 +134,7 @@ def build_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -161,7 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -207,6 +203,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(
@@ -236,7 +233,7 @@ def list(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[List[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -304,7 +301,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -362,14 +359,14 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(private_endpoint_connection, (IO, bytes)):
+        if isinstance(private_endpoint_connection, (IOBase, bytes)):
             _content = private_endpoint_connection
         else:
             _json = self._serialize.body(private_endpoint_connection, "PrivateEndpointConnection")
@@ -545,7 +542,7 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -605,7 +602,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[Optional[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -680,7 +677,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_private_link_resources_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_private_link_resources_operations.py
index 159f4c94f056..2e0aa6fb6d6b 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_private_link_resources_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_private_link_resources_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +40,7 @@ def build_list_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -59,7 +54,7 @@ def build_list_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -76,7 +71,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -91,7 +86,7 @@ def build_get_request(
         "groupId": _SERIALIZER.url("group_id", group_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -120,6 +115,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.PrivateLinkResources:
@@ -147,7 +143,7 @@ def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.PrivateLinkResources] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -215,7 +211,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.GroupIdInformation] = kwargs.pop("cls", None)
 
         request = build_get_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_resource_provider_common_operations.py
index 42ab6273f39a..34465f867579 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_01/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -43,7 +38,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -52,7 +47,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -81,6 +76,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -104,7 +100,7 @@ def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuota
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-01"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-01"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-01"))
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
         request = build_get_subscription_quota_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_configuration.py
index f648a2a2b80b..b506f9f41b4b 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", "2021-07-02")
+        api_version: str = kwargs.pop("api_version", "2021-07-02")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_iot_hub_client.py
index 71494c802314..3818a1ab6409 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_iot_hub_client.py
@@ -77,18 +77,22 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2021-07-02")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-02"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-02"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-02"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize, "2021-07-02")
         self.private_link_resources = PrivateLinkResourcesOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-02"
         )
         self.private_endpoint_connections = PrivateEndpointConnectionsOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-02"
         )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/_configuration.py
index 82babdbe1b53..fb4f18f303d6 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", "2021-07-02")
+        api_version: str = kwargs.pop("api_version", "2021-07-02")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/_iot_hub_client.py
index 3464dc83b52b..163bec6e4b39 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/_iot_hub_client.py
@@ -78,18 +78,22 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize, "2021-07-02")
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-02"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-02"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-02"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize, "2021-07-02")
         self.private_link_resources = PrivateLinkResourcesOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-02"
         )
         self.private_endpoint_connections = PrivateEndpointConnectionsOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2021-07-02"
         )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_certificates_operations.py
index d69c6734b9f3..edc5a80a7a45 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_verify_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list_by_iot_hub(
@@ -90,7 +87,7 @@ async def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -158,7 +155,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -315,14 +312,14 @@ async def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateDescription")
@@ -403,7 +400,7 @@ async def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -472,7 +469,7 @@ async def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -631,14 +628,14 @@ async def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_iot_hub_operations.py
index 775a721da768..4da42bc474e0 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -30,10 +30,6 @@
 from ..._vendor import _convert_request
 from ...operations._iot_hub_operations import build_manual_failover_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +52,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     async def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -75,14 +72,14 @@ async def _manual_failover_initial(  # pylint: disable=inconsistent-return-state
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -241,7 +238,7 @@ async def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_iot_hub_resource_operations.py
index c16cf9ac34e4..412f907ffc15 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -57,10 +57,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -83,6 +79,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -110,7 +107,7 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -167,14 +164,14 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -361,7 +358,7 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -421,14 +418,14 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -581,7 +578,7 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -640,7 +637,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -716,7 +713,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -773,7 +770,7 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -861,7 +858,7 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -961,7 +958,7 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1021,7 +1018,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1120,7 +1117,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1227,7 +1224,7 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -1386,14 +1383,14 @@ async def create_event_hub_consumer_group(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(consumer_group_body, (IO, bytes)):
+        if isinstance(consumer_group_body, (IOBase, bytes)):
             _content = consumer_group_body
         else:
             _json = self._serialize.body(consumer_group_body, "EventHubConsumerGroupBodyDescription")
@@ -1471,7 +1468,7 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -1530,7 +1527,7 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1635,7 +1632,7 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -1696,7 +1693,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1790,7 +1787,7 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1933,14 +1930,14 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2073,14 +2070,14 @@ async def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2215,14 +2212,14 @@ async def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2289,7 +2286,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2394,7 +2391,7 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -2544,14 +2541,14 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2705,14 +2702,14 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_operations.py
index f11a880d852c..941a8adcc06c 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, AsyncIterable, Callable, Dict, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._vendor import _convert_request
 from ...operations._operations import build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +51,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
@@ -70,7 +66,7 @@ def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_private_endpoint_connections_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_private_endpoint_connections_operations.py
index 24e9dbcd548c..ba7587ed3738 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_private_endpoint_connections_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_private_endpoint_connections_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, List, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list(
@@ -90,7 +87,7 @@ async def list(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[List[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -158,7 +155,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -216,14 +213,14 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(private_endpoint_connection, (IO, bytes)):
+        if isinstance(private_endpoint_connection, (IOBase, bytes)):
             _content = private_endpoint_connection
         else:
             _json = self._serialize.body(private_endpoint_connection, "PrivateEndpointConnection")
@@ -399,7 +396,7 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -459,7 +456,7 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[Optional[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -534,7 +531,7 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_private_link_resources_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_private_link_resources_operations.py
index 81c7c16adc0b..b64e008fa0b2 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_private_link_resources_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_private_link_resources_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._private_link_resources_operations import build_get_request, build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.PrivateLinkResources:
@@ -81,7 +77,7 @@ async def list(self, resource_group_name: str, resource_name: str, **kwargs: Any
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.PrivateLinkResources] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -149,7 +145,7 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.GroupIdInformation] = kwargs.pop("cls", None)
 
         request = build_get_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_resource_provider_common_operations.py
index 4e24545ced9e..79569ba7fcaa 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/aio/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._resource_provider_common_operations import build_get_subscription_quota_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -77,7 +73,7 @@ async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptio
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
         request = build_get_subscription_quota_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/models/_iot_hub_client_enums.py
index 5d5a95accb2b..2d31d1e7ac49 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/models/_iot_hub_client_enums.py
@@ -157,6 +157,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class NetworkRuleIPAction(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/models/_models_py3.py
index 9930b4d40fbc..99cdc2b590c6 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/models/_models_py3.py
@@ -1961,7 +1961,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2021_07_02.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_certificates_operations.py
index 5901a132a577..e7504ca8a218 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -26,12 +26,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +41,7 @@ def build_list_by_iot_hub_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -59,7 +55,7 @@ def build_list_by_iot_hub_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -76,7 +72,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -93,7 +89,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -116,7 +112,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -134,7 +130,7 @@ def build_create_or_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -161,7 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -202,7 +198,7 @@ def build_generate_verification_code_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -219,7 +215,7 @@ def build_generate_verification_code_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -243,7 +239,7 @@ def build_verify_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -261,7 +257,7 @@ def build_verify_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,6 +289,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list_by_iot_hub(
@@ -322,7 +319,7 @@ def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
         request = build_list_by_iot_hub_request(
@@ -390,7 +387,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -547,14 +544,14 @@ def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateDescription")
@@ -635,7 +632,7 @@ def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -704,7 +701,7 @@ def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
         request = build_generate_verification_code_request(
@@ -863,14 +860,14 @@ def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_iot_hub_operations.py
index 2fd82f5f8e16..1cb67ee18521 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_manual_failover_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -62,7 +58,7 @@ def build_manual_failover_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -93,6 +89,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -112,14 +109,14 @@ def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -278,7 +275,7 @@ def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_iot_hub_resource_operations.py
index 1c4f40f56ebf..8b7d717dd335 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,7 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -93,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -114,7 +110,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -129,7 +125,7 @@ def build_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -148,7 +144,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -162,7 +158,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -177,7 +173,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +182,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -201,7 +197,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -214,7 +210,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -231,7 +227,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -245,7 +241,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -262,7 +258,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -276,7 +272,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -293,7 +289,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -308,7 +304,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -330,7 +326,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -346,7 +342,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -368,7 +364,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -385,7 +381,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -409,7 +405,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -425,7 +421,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -442,7 +438,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -456,7 +452,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -473,7 +469,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -488,7 +484,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -505,7 +501,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -519,7 +515,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -536,7 +532,7 @@ def build_get_endpoint_health_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -550,7 +546,7 @@ def build_get_endpoint_health_request(
         "iotHubName": _SERIALIZER.url("iot_hub_name", iot_hub_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -565,7 +561,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -577,7 +573,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -596,7 +592,7 @@ def build_test_all_routes_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -611,7 +607,7 @@ def build_test_all_routes_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -630,7 +626,7 @@ def build_test_route_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -645,7 +641,7 @@ def build_test_route_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -664,7 +660,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -678,7 +674,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -695,7 +691,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -710,7 +706,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -727,7 +723,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -742,7 +738,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -761,7 +757,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -776,7 +772,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -807,6 +803,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -834,7 +831,7 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -891,14 +888,14 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -1082,7 +1079,7 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1142,14 +1139,14 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -1299,7 +1296,7 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1358,7 +1355,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -1433,7 +1430,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
@@ -1489,7 +1486,7 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1574,7 +1571,7 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1672,7 +1669,7 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
         request = build_get_stats_request(
@@ -1732,7 +1729,7 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1831,7 +1828,7 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -1938,7 +1935,7 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         request = build_get_event_hub_consumer_group_request(
@@ -2097,14 +2094,14 @@ def create_event_hub_consumer_group(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(consumer_group_body, (IO, bytes)):
+        if isinstance(consumer_group_body, (IOBase, bytes)):
             _content = consumer_group_body
         else:
             _json = self._serialize.body(consumer_group_body, "EventHubConsumerGroupBodyDescription")
@@ -2182,7 +2179,7 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[None] = kwargs.pop("cls", None)
 
         request = build_delete_event_hub_consumer_group_request(
@@ -2238,7 +2235,7 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2341,7 +2338,7 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         request = build_get_job_request(
@@ -2402,7 +2399,7 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2495,7 +2492,7 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -2638,14 +2635,14 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2778,14 +2775,14 @@ def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2920,14 +2917,14 @@ def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2994,7 +2991,7 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
         error_map = {
@@ -3099,7 +3096,7 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
         request = build_get_keys_for_key_name_request(
@@ -3249,14 +3246,14 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -3410,14 +3407,14 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_operations.py
index 19c412b63495..00f47f181c4e 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Iterable, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._serialization import Serializer
 from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +40,7 @@ def build_list_request(**kwargs: Any) -> HttpRequest:
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -78,6 +73,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
@@ -91,7 +87,7 @@ def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
         error_map = {
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_private_endpoint_connections_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_private_endpoint_connections_operations.py
index 43e7a167abe2..336ed88920a0 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_private_endpoint_connections_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_private_endpoint_connections_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, List, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,7 +43,7 @@ def build_list_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +57,7 @@ def build_list_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -82,7 +78,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -99,7 +95,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -120,7 +116,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -138,7 +134,7 @@ def build_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -161,7 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -178,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -207,6 +203,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(
@@ -236,7 +233,7 @@ def list(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[List[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -304,7 +301,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         request = build_get_request(
@@ -362,14 +359,14 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(private_endpoint_connection, (IO, bytes)):
+        if isinstance(private_endpoint_connection, (IOBase, bytes)):
             _content = private_endpoint_connection
         else:
             _json = self._serialize.body(private_endpoint_connection, "PrivateEndpointConnection")
@@ -545,7 +542,7 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -605,7 +602,7 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[Optional[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
         request = build_delete_request(
@@ -680,7 +677,7 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
         lro_delay = kwargs.pop("polling_interval", self._config.polling_interval)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_private_link_resources_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_private_link_resources_operations.py
index e74a22a2564e..cd25a4917b2e 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_private_link_resources_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_private_link_resources_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,7 +40,7 @@ def build_list_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -59,7 +54,7 @@ def build_list_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -76,7 +71,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -91,7 +86,7 @@ def build_get_request(
         "groupId": _SERIALIZER.url("group_id", group_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -120,6 +115,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.PrivateLinkResources:
@@ -147,7 +143,7 @@ def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.PrivateLinkResources] = kwargs.pop("cls", None)
 
         request = build_list_request(
@@ -215,7 +211,7 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.GroupIdInformation] = kwargs.pop("cls", None)
 
         request = build_get_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_resource_provider_common_operations.py
index d99dfbb7d85b..3ce1a3040bbf 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2021_07_02/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -43,7 +38,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -52,7 +47,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -81,6 +76,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -104,7 +100,7 @@ def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuota
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2021-07-02"] = kwargs.pop("api_version", _params.pop("api-version", "2021-07-02"))
+        api_version: str = kwargs.pop("api_version", _params.pop("api-version", self._api_version or "2021-07-02"))
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
         request = build_get_subscription_quota_request(
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_configuration.py
index 782c0b0e6df4..fffe98c1f99f 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop("api_version", "2022-04-30-preview")
+        api_version: str = kwargs.pop("api_version", "2022-04-30-preview")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_iot_hub_client.py
index 47230c84ab39..544fdfabd265 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_iot_hub_client.py
@@ -78,18 +78,26 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-04-30-preview"
+        )
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-04-30-preview"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2022-04-30-preview"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-04-30-preview"
+        )
+        self.iot_hub = IotHubOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-04-30-preview"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
         self.private_link_resources = PrivateLinkResourcesOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2022-04-30-preview"
         )
         self.private_endpoint_connections = PrivateEndpointConnectionsOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2022-04-30-preview"
         )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/_configuration.py
index f6b98771b263..9f21c65c1b0d 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop("api_version", "2022-04-30-preview")
+        api_version: str = kwargs.pop("api_version", "2022-04-30-preview")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/_iot_hub_client.py
index 36518f26b287..cc273a1fab57 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/_iot_hub_client.py
@@ -79,18 +79,26 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-04-30-preview"
+        )
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-04-30-preview"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2022-04-30-preview"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-04-30-preview"
+        )
+        self.iot_hub = IotHubOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-04-30-preview"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
         self.private_link_resources = PrivateLinkResourcesOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2022-04-30-preview"
         )
         self.private_endpoint_connections = PrivateEndpointConnectionsOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2022-04-30-preview"
         )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_certificates_operations.py
index 410c8d48543d..1115e34dd1ee 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_verify_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list_by_iot_hub(
@@ -90,8 +87,8 @@ async def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
@@ -160,8 +157,8 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
@@ -320,8 +317,8 @@ async def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -329,7 +326,7 @@ async def create_or_update(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateDescription")
@@ -410,8 +407,8 @@ async def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -481,8 +478,8 @@ async def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
@@ -642,8 +639,8 @@ async def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -651,7 +648,7 @@ async def verify(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_iot_hub_operations.py
index 9c480d56d286..599379248508 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -30,10 +30,6 @@
 from ..._vendor import _convert_request
 from ...operations._iot_hub_operations import build_manual_failover_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +52,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     async def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -75,8 +72,8 @@ async def _manual_failover_initial(  # pylint: disable=inconsistent-return-state
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
@@ -84,7 +81,7 @@ async def _manual_failover_initial(  # pylint: disable=inconsistent-return-state
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -243,8 +240,8 @@ async def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_iot_hub_resource_operations.py
index 2b993427d3d9..d329e5a07a3b 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -57,10 +57,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -83,6 +79,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -110,8 +107,8 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
@@ -169,8 +166,8 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -178,7 +175,7 @@ async def _create_or_update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -365,8 +362,8 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -427,8 +424,8 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -436,7 +433,7 @@ async def _update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -594,8 +591,8 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -661,8 +658,8 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
@@ -745,8 +742,8 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -804,8 +801,8 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -894,8 +891,8 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -996,8 +993,8 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
@@ -1058,8 +1055,8 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1159,8 +1156,8 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
@@ -1268,8 +1265,8 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
@@ -1429,8 +1426,8 @@ async def create_event_hub_consumer_group(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
@@ -1438,7 +1435,7 @@ async def create_event_hub_consumer_group(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(consumer_group_body, (IO, bytes)):
+        if isinstance(consumer_group_body, (IOBase, bytes)):
             _content = consumer_group_body
         else:
             _json = self._serialize.body(consumer_group_body, "EventHubConsumerGroupBodyDescription")
@@ -1516,8 +1513,8 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -1577,8 +1574,8 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
@@ -1684,8 +1681,8 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
@@ -1747,8 +1744,8 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
@@ -1843,8 +1840,8 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
@@ -1988,8 +1985,8 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
@@ -1997,7 +1994,7 @@ async def check_name_availability(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2130,8 +2127,8 @@ async def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
@@ -2139,7 +2136,7 @@ async def test_all_routes(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2274,8 +2271,8 @@ async def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
@@ -2283,7 +2280,7 @@ async def test_route(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2350,8 +2347,8 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
@@ -2457,8 +2454,8 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
@@ -2610,8 +2607,8 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -2619,7 +2616,7 @@ async def export_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2774,8 +2771,8 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -2783,7 +2780,7 @@ async def import_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_operations.py
index fbcd166ee4a3..ea3f98181749 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, AsyncIterable, Callable, Dict, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._vendor import _convert_request
 from ...operations._operations import build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +51,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
@@ -70,8 +66,8 @@ def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_private_endpoint_connections_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_private_endpoint_connections_operations.py
index 8554807e3a68..9bc4a4cf0739 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_private_endpoint_connections_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_private_endpoint_connections_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, List, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list(
@@ -90,8 +87,8 @@ async def list(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[List[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
@@ -160,8 +157,8 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
@@ -220,8 +217,8 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
@@ -229,7 +226,7 @@ async def _update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(private_endpoint_connection, (IO, bytes)):
+        if isinstance(private_endpoint_connection, (IOBase, bytes)):
             _content = private_endpoint_connection
         else:
             _json = self._serialize.body(private_endpoint_connection, "PrivateEndpointConnection")
@@ -410,8 +407,8 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
@@ -472,8 +469,8 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[Optional[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
@@ -554,8 +551,8 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_private_link_resources_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_private_link_resources_operations.py
index 245360d0aab4..137e98913442 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_private_link_resources_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_private_link_resources_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._private_link_resources_operations import build_get_request, build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.PrivateLinkResources:
@@ -81,8 +77,8 @@ async def list(self, resource_group_name: str, resource_name: str, **kwargs: Any
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.PrivateLinkResources] = kwargs.pop("cls", None)
 
@@ -151,8 +147,8 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.GroupIdInformation] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_resource_provider_common_operations.py
index 1946e14b3916..b585409ab4d0 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/aio/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._resource_provider_common_operations import build_get_subscription_quota_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -77,8 +73,8 @@ async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptio
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/models/_iot_hub_client_enums.py
index 2562e239f8a9..ee0dc88b1223 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/models/_iot_hub_client_enums.py
@@ -157,6 +157,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class NetworkRuleIPAction(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/models/_models_py3.py
index 00a1e91a26c7..76e73704a1de 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/models/_models_py3.py
@@ -2058,7 +2058,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2022_04_30_preview.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_certificates_operations.py
index 50175e1d0bb5..47cc0ffb25ad 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -26,12 +26,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,9 +41,7 @@ def build_list_by_iot_hub_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +55,7 @@ def build_list_by_iot_hub_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,9 +72,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -97,7 +89,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -120,9 +112,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -140,7 +130,7 @@ def build_create_or_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -167,9 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -210,9 +198,7 @@ def build_generate_verification_code_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -229,7 +215,7 @@ def build_generate_verification_code_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -253,9 +239,7 @@ def build_verify_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -273,7 +257,7 @@ def build_verify_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -305,6 +289,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list_by_iot_hub(
@@ -334,8 +319,8 @@ def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
@@ -404,8 +389,8 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
@@ -564,8 +549,8 @@ def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -573,7 +558,7 @@ def create_or_update(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateDescription")
@@ -654,8 +639,8 @@ def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -725,8 +710,8 @@ def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
@@ -886,8 +871,8 @@ def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -895,7 +880,7 @@ def verify(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_iot_hub_operations.py
index af83b6046a7d..5cbc22662e25 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,9 +43,7 @@ def build_manual_failover_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -64,7 +58,7 @@ def build_manual_failover_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -95,6 +89,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -114,8 +109,8 @@ def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
@@ -123,7 +118,7 @@ def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -282,8 +277,8 @@ def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_iot_hub_resource_operations.py
index 0a650b0c6be6..ff622dec44c0 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,9 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -63,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -80,9 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -97,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -118,9 +110,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -135,7 +125,7 @@ def build_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -154,9 +144,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -170,7 +158,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -185,9 +173,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -196,7 +182,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -211,9 +197,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -226,7 +210,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -243,9 +227,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -259,7 +241,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -276,9 +258,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -292,7 +272,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -309,9 +289,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -326,7 +304,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -348,9 +326,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -366,7 +342,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -388,9 +364,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -407,7 +381,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -431,9 +405,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -449,7 +421,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -466,9 +438,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -482,7 +452,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -499,9 +469,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -516,7 +484,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -533,9 +501,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -549,7 +515,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -566,9 +532,7 @@ def build_get_endpoint_health_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -582,7 +546,7 @@ def build_get_endpoint_health_request(
         "iotHubName": _SERIALIZER.url("iot_hub_name", iot_hub_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -597,9 +561,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -611,7 +573,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -630,9 +592,7 @@ def build_test_all_routes_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -647,7 +607,7 @@ def build_test_all_routes_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -666,9 +626,7 @@ def build_test_route_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -683,7 +641,7 @@ def build_test_route_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -702,9 +660,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -718,7 +674,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -735,9 +691,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -752,7 +706,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -769,9 +723,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -786,7 +738,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -805,9 +757,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -822,7 +772,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -853,6 +803,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -880,8 +831,8 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
@@ -939,8 +890,8 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -948,7 +899,7 @@ def _create_or_update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -1135,8 +1086,8 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -1197,8 +1148,8 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -1206,7 +1157,7 @@ def _update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -1364,8 +1315,8 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -1431,8 +1382,8 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
@@ -1514,8 +1465,8 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1573,8 +1524,8 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1661,8 +1612,8 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1761,8 +1712,8 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
@@ -1823,8 +1774,8 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1924,8 +1875,8 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
@@ -2033,8 +1984,8 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
@@ -2194,8 +2145,8 @@ def create_event_hub_consumer_group(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
@@ -2203,7 +2154,7 @@ def create_event_hub_consumer_group(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(consumer_group_body, (IO, bytes)):
+        if isinstance(consumer_group_body, (IOBase, bytes)):
             _content = consumer_group_body
         else:
             _json = self._serialize.body(consumer_group_body, "EventHubConsumerGroupBodyDescription")
@@ -2281,8 +2232,8 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -2339,8 +2290,8 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
@@ -2444,8 +2395,8 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
@@ -2507,8 +2458,8 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
@@ -2603,8 +2554,8 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
@@ -2748,8 +2699,8 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
@@ -2757,7 +2708,7 @@ def check_name_availability(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2890,8 +2841,8 @@ def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
@@ -2899,7 +2850,7 @@ def test_all_routes(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -3034,8 +2985,8 @@ def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
@@ -3043,7 +2994,7 @@ def test_route(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -3110,8 +3061,8 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
@@ -3217,8 +3168,8 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
@@ -3370,8 +3321,8 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -3379,7 +3330,7 @@ def export_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -3534,8 +3485,8 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -3543,7 +3494,7 @@ def import_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_operations.py
index e456e04dabe3..4743e73e9087 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Iterable, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._serialization import Serializer
 from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,9 +40,7 @@ def build_list_request(**kwargs: Any) -> HttpRequest:
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -80,6 +73,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
@@ -93,8 +87,8 @@ def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_private_endpoint_connections_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_private_endpoint_connections_operations.py
index 0189733563ef..a21d8a7d812b 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_private_endpoint_connections_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_private_endpoint_connections_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, List, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,9 +43,7 @@ def build_list_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -63,7 +57,7 @@ def build_list_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -84,9 +78,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -103,7 +95,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -124,9 +116,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -144,7 +134,7 @@ def build_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -167,9 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -215,6 +203,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(
@@ -244,8 +233,8 @@ def list(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[List[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
@@ -314,8 +303,8 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
@@ -374,8 +363,8 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
@@ -383,7 +372,7 @@ def _update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(private_endpoint_connection, (IO, bytes)):
+        if isinstance(private_endpoint_connection, (IOBase, bytes)):
             _content = private_endpoint_connection
         else:
             _json = self._serialize.body(private_endpoint_connection, "PrivateEndpointConnection")
@@ -564,8 +553,8 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
@@ -626,8 +615,8 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[Optional[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
@@ -708,8 +697,8 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_private_link_resources_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_private_link_resources_operations.py
index 95585d4554d7..1fb3070fd220 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_private_link_resources_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_private_link_resources_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,9 +40,7 @@ def build_list_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +54,7 @@ def build_list_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,9 +71,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -95,7 +86,7 @@ def build_get_request(
         "groupId": _SERIALIZER.url("group_id", group_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -124,6 +115,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.PrivateLinkResources:
@@ -151,8 +143,8 @@ def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.PrivateLinkResources] = kwargs.pop("cls", None)
 
@@ -221,8 +213,8 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.GroupIdInformation] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_resource_provider_common_operations.py
index 656aae9b80c5..8dc50894e754 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_04_30_preview/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -43,9 +38,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-04-30-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-04-30-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -54,7 +47,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -83,6 +76,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -106,8 +100,8 @@ def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuota
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-04-30-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-04-30-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-04-30-preview")
         )
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_configuration.py
index 5906e1d9efa8..a2df4dc00cd0 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from ._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials import TokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "TokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop("api_version", "2022-11-15-preview")
+        api_version: str = kwargs.pop("api_version", "2022-11-15-preview")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_iot_hub_client.py
index b0d894205995..9bd8c4d66755 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_iot_hub_client.py
@@ -78,18 +78,26 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-11-15-preview"
+        )
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-11-15-preview"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2022-11-15-preview"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-11-15-preview"
+        )
+        self.iot_hub = IotHubOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-11-15-preview"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
         self.private_link_resources = PrivateLinkResourcesOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2022-11-15-preview"
         )
         self.private_endpoint_connections = PrivateEndpointConnectionsOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2022-11-15-preview"
         )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> HttpResponse:
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_vendor.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_vendor.py
index bd0df84f5319..0dafe0e287ff 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_vendor.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_vendor.py
@@ -5,8 +5,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import List, cast
-
 from azure.core.pipeline.transport import HttpRequest
 
 
@@ -16,15 +14,3 @@ def _convert_request(request, files=None):
     if files:
         request.set_formdata_body(files)
     return request
-
-
-def _format_url_section(template, **kwargs):
-    components = template.split("/")
-    while components:
-        try:
-            return template.format(**kwargs)
-        except KeyError as key:
-            # Need the cast, as for some reasons "split" is typed as list[str | Any]
-            formatted_components = cast(List[str], template.split("/"))
-            components = [c for c in formatted_components if "{}".format(key.args[0]) not in c]
-            template = "/".join(components)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_version.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_version.py
index 1d9186e2318f..e5754a47ce68 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_version.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "2.4.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/_configuration.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/_configuration.py
index 424a07e8c5fd..b4b74e6e4896 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/_configuration.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/_configuration.py
@@ -6,7 +6,6 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-import sys
 from typing import Any, TYPE_CHECKING
 
 from azure.core.configuration import Configuration
@@ -15,11 +14,6 @@
 
 from .._version import VERSION
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
-
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from azure.core.credentials_async import AsyncTokenCredential
@@ -42,7 +36,7 @@ class IotHubClientConfiguration(Configuration):  # pylint: disable=too-many-inst
 
     def __init__(self, credential: "AsyncTokenCredential", subscription_id: str, **kwargs: Any) -> None:
         super(IotHubClientConfiguration, self).__init__(**kwargs)
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop("api_version", "2022-11-15-preview")
+        api_version: str = kwargs.pop("api_version", "2022-11-15-preview")
 
         if credential is None:
             raise ValueError("Parameter 'credential' must not be None.")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/_iot_hub_client.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/_iot_hub_client.py
index 887319bebe8d..c4bff0c4297c 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/_iot_hub_client.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/_iot_hub_client.py
@@ -79,18 +79,26 @@ def __init__(
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
         self._serialize.client_side_validation = False
-        self.operations = Operations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub_resource = IotHubResourceOperations(self._client, self._config, self._serialize, self._deserialize)
+        self.operations = Operations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-11-15-preview"
+        )
+        self.iot_hub_resource = IotHubResourceOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-11-15-preview"
+        )
         self.resource_provider_common = ResourceProviderCommonOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2022-11-15-preview"
+        )
+        self.certificates = CertificatesOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-11-15-preview"
+        )
+        self.iot_hub = IotHubOperations(
+            self._client, self._config, self._serialize, self._deserialize, "2022-11-15-preview"
         )
-        self.certificates = CertificatesOperations(self._client, self._config, self._serialize, self._deserialize)
-        self.iot_hub = IotHubOperations(self._client, self._config, self._serialize, self._deserialize)
         self.private_link_resources = PrivateLinkResourcesOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2022-11-15-preview"
         )
         self.private_endpoint_connections = PrivateEndpointConnectionsOperations(
-            self._client, self._config, self._serialize, self._deserialize
+            self._client, self._config, self._serialize, self._deserialize, "2022-11-15-preview"
         )
 
     def _send_request(self, request: HttpRequest, **kwargs: Any) -> Awaitable[AsyncHttpResponse]:
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_certificates_operations.py
index 812e0824575f..d1a05b4324d3 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_verify_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list_by_iot_hub(
@@ -90,8 +87,8 @@ async def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
@@ -160,8 +157,8 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
@@ -320,8 +317,8 @@ async def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -329,7 +326,7 @@ async def create_or_update(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateDescription")
@@ -410,8 +407,8 @@ async def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -481,8 +478,8 @@ async def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
@@ -642,8 +639,8 @@ async def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -651,7 +648,7 @@ async def verify(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_iot_hub_operations.py
index a869cb8964a9..17ba8747c709 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -30,10 +30,6 @@
 from ..._vendor import _convert_request
 from ...operations._iot_hub_operations import build_manual_failover_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +52,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     async def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -75,8 +72,8 @@ async def _manual_failover_initial(  # pylint: disable=inconsistent-return-state
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
@@ -84,7 +81,7 @@ async def _manual_failover_initial(  # pylint: disable=inconsistent-return-state
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -250,8 +247,8 @@ async def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_iot_hub_resource_operations.py
index 39176bdf4d81..6688f7ad80cb 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, AsyncIterable, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -57,10 +57,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -83,6 +79,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -110,8 +107,8 @@ async def get(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
@@ -169,8 +166,8 @@ async def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -178,7 +175,7 @@ async def _create_or_update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -365,8 +362,8 @@ async def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -427,8 +424,8 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -436,7 +433,7 @@ async def _update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -594,8 +591,8 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -661,8 +658,8 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
@@ -745,8 +742,8 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
@@ -804,8 +801,8 @@ def list_by_subscription(self, **kwargs: Any) -> AsyncIterable["_models.IotHubDe
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -894,8 +891,8 @@ def list_by_resource_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -996,8 +993,8 @@ async def get_stats(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
@@ -1058,8 +1055,8 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1159,8 +1156,8 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
@@ -1268,8 +1265,8 @@ async def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
@@ -1429,8 +1426,8 @@ async def create_event_hub_consumer_group(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
@@ -1438,7 +1435,7 @@ async def create_event_hub_consumer_group(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(consumer_group_body, (IO, bytes)):
+        if isinstance(consumer_group_body, (IOBase, bytes)):
             _content = consumer_group_body
         else:
             _json = self._serialize.body(consumer_group_body, "EventHubConsumerGroupBodyDescription")
@@ -1516,8 +1513,8 @@ async def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-retur
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -1577,8 +1574,8 @@ def list_jobs(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
@@ -1684,8 +1681,8 @@ async def get_job(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
@@ -1747,8 +1744,8 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
@@ -1843,8 +1840,8 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
@@ -1988,8 +1985,8 @@ async def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
@@ -1997,7 +1994,7 @@ async def check_name_availability(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2130,8 +2127,8 @@ async def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
@@ -2139,7 +2136,7 @@ async def test_all_routes(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -2274,8 +2271,8 @@ async def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
@@ -2283,7 +2280,7 @@ async def test_route(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -2350,8 +2347,8 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
@@ -2457,8 +2454,8 @@ async def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
@@ -2610,8 +2607,8 @@ async def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -2619,7 +2616,7 @@ async def export_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -2774,8 +2771,8 @@ async def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -2783,7 +2780,7 @@ async def import_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_operations.py
index d58800706708..c99e6d8e50f5 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, AsyncIterable, Callable, Dict, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._vendor import _convert_request
 from ...operations._operations import build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -56,6 +51,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
@@ -70,8 +66,8 @@ def list(self, **kwargs: Any) -> AsyncIterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_private_endpoint_connections_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_private_endpoint_connections_operations.py
index 64931e95c17c..61a0f6f007ed 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_private_endpoint_connections_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_private_endpoint_connections_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, List, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -35,10 +35,6 @@
     build_update_request,
 )
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -61,6 +57,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list(
@@ -90,8 +87,8 @@ async def list(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[List[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
@@ -160,8 +157,8 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
@@ -220,8 +217,8 @@ async def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
@@ -229,7 +226,7 @@ async def _update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(private_endpoint_connection, (IO, bytes)):
+        if isinstance(private_endpoint_connection, (IOBase, bytes)):
             _content = private_endpoint_connection
         else:
             _json = self._serialize.body(private_endpoint_connection, "PrivateEndpointConnection")
@@ -410,8 +407,8 @@ async def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
@@ -472,8 +469,8 @@ async def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[Optional[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
@@ -554,8 +551,8 @@ async def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, AsyncPollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_private_link_resources_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_private_link_resources_operations.py
index 49017be5825a..fbac3975abc4 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_private_link_resources_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_private_link_resources_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._private_link_resources_operations import build_get_request, build_list_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.PrivateLinkResources:
@@ -81,8 +77,8 @@ async def list(self, resource_group_name: str, resource_name: str, **kwargs: Any
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.PrivateLinkResources] = kwargs.pop("cls", None)
 
@@ -151,8 +147,8 @@ async def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.GroupIdInformation] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_resource_provider_common_operations.py
index abff905b81cd..5058d8c9f0d9 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/aio/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -28,10 +27,6 @@
 from ..._vendor import _convert_request
 from ...operations._resource_provider_common_operations import build_get_subscription_quota_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
 
@@ -54,6 +49,7 @@ def __init__(self, *args, **kwargs) -> None:
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace_async
     async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -77,8 +73,8 @@ async def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptio
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/models/_iot_hub_client_enums.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/models/_iot_hub_client_enums.py
index faf4c32c1f5c..8e8bf07cccb6 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/models/_iot_hub_client_enums.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/models/_iot_hub_client_enums.py
@@ -165,6 +165,7 @@ class JobType(str, Enum, metaclass=CaseInsensitiveEnumMeta):
     REBOOT_DEVICE = "rebootDevice"
     FACTORY_RESET_DEVICE = "factoryResetDevice"
     FIRMWARE_UPDATE = "firmwareUpdate"
+    IMPORT_ENUM = "import"
 
 
 class NetworkRuleIPAction(str, Enum, metaclass=CaseInsensitiveEnumMeta):
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/models/_models_py3.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/models/_models_py3.py
index 7a589416a3b4..ee2b42a2a43c 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/models/_models_py3.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/models/_models_py3.py
@@ -2067,7 +2067,7 @@ class JobResponse(_serialization.Model):
     :vartype end_time_utc: ~datetime.datetime
     :ivar type: The type of the job. Known values are: "unknown", "export", "import", "backup",
      "readDeviceProperties", "writeDeviceProperties", "updateDeviceConfiguration", "rebootDevice",
-     "factoryResetDevice", and "firmwareUpdate".
+     "factoryResetDevice", "firmwareUpdate", and "import".
     :vartype type: str or ~azure.mgmt.iothub.v2022_11_15_preview.models.JobType
     :ivar status: The status of the job. Known values are: "unknown", "enqueued", "running",
      "completed", "failed", and "cancelled".
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_certificates_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_certificates_operations.py
index cde4d9858aa5..c202a3741653 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_certificates_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_certificates_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, overload
 
 from azure.core.exceptions import (
@@ -26,12 +26,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,9 +41,7 @@ def build_list_by_iot_hub_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +55,7 @@ def build_list_by_iot_hub_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,9 +72,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -97,7 +89,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -120,9 +112,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -140,7 +130,7 @@ def build_create_or_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -167,9 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -210,9 +198,7 @@ def build_generate_verification_code_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -229,7 +215,7 @@ def build_generate_verification_code_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -253,9 +239,7 @@ def build_verify_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -273,7 +257,7 @@ def build_verify_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -305,6 +289,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list_by_iot_hub(
@@ -334,8 +319,8 @@ def list_by_iot_hub(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.CertificateListDescription] = kwargs.pop("cls", None)
 
@@ -404,8 +389,8 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
 
@@ -564,8 +549,8 @@ def create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -573,7 +558,7 @@ def create_or_update(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_description, (IO, bytes)):
+        if isinstance(certificate_description, (IOBase, bytes)):
             _content = certificate_description
         else:
             _json = self._serialize.body(certificate_description, "CertificateDescription")
@@ -654,8 +639,8 @@ def delete(  # pylint: disable=inconsistent-return-statements
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -725,8 +710,8 @@ def generate_verification_code(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.CertificateWithNonceDescription] = kwargs.pop("cls", None)
 
@@ -886,8 +871,8 @@ def verify(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.CertificateDescription] = kwargs.pop("cls", None)
@@ -895,7 +880,7 @@ def verify(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(certificate_verification_body, (IO, bytes)):
+        if isinstance(certificate_verification_body, (IOBase, bytes)):
             _content = certificate_verification_body
         else:
             _json = self._serialize.body(certificate_verification_body, "CertificateVerificationDescription")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_iot_hub_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_iot_hub_operations.py
index 23abf318752f..6a3a98ea9200 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_iot_hub_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_iot_hub_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,9 +43,7 @@ def build_manual_failover_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -64,7 +58,7 @@ def build_manual_failover_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -95,6 +89,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         self,
@@ -114,8 +109,8 @@ def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
@@ -123,7 +118,7 @@ def _manual_failover_initial(  # pylint: disable=inconsistent-return-statements
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(failover_input, (IO, bytes)):
+        if isinstance(failover_input, (IOBase, bytes)):
             _content = failover_input
         else:
             _json = self._serialize.body(failover_input, "FailoverInput")
@@ -289,8 +284,8 @@ def begin_manual_failover(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[None] = kwargs.pop("cls", None)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_iot_hub_resource_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_iot_hub_resource_operations.py
index 72fa1b637cff..e0e417990fbf 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_iot_hub_resource_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_iot_hub_resource_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, Iterable, Optional, TypeVar, Union, cast, overload
 import urllib.parse
 
@@ -30,12 +30,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,9 +43,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -63,7 +57,7 @@ def build_get_request(resource_group_name: str, resource_name: str, subscription
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -80,9 +74,7 @@ def build_create_or_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -97,7 +89,7 @@ def build_create_or_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -118,9 +110,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -135,7 +125,7 @@ def build_update_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -154,9 +144,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -170,7 +158,7 @@ def build_delete_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -185,9 +173,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -196,7 +182,7 @@ def build_list_by_subscription_request(subscription_id: str, **kwargs: Any) -> H
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -211,9 +197,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -226,7 +210,7 @@ def build_list_by_resource_group_request(resource_group_name: str, subscription_
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -243,9 +227,7 @@ def build_get_stats_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -259,7 +241,7 @@ def build_get_stats_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -276,9 +258,7 @@ def build_get_valid_skus_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -292,7 +272,7 @@ def build_get_valid_skus_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -309,9 +289,7 @@ def build_list_event_hub_consumer_groups_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -326,7 +304,7 @@ def build_list_event_hub_consumer_groups_request(
         "eventHubEndpointName": _SERIALIZER.url("event_hub_endpoint_name", event_hub_endpoint_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -348,9 +326,7 @@ def build_get_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -366,7 +342,7 @@ def build_get_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -388,9 +364,7 @@ def build_create_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -407,7 +381,7 @@ def build_create_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -431,9 +405,7 @@ def build_delete_event_hub_consumer_group_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -449,7 +421,7 @@ def build_delete_event_hub_consumer_group_request(
         "name": _SERIALIZER.url("name", name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -466,9 +438,7 @@ def build_list_jobs_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -482,7 +452,7 @@ def build_list_jobs_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -499,9 +469,7 @@ def build_get_job_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -516,7 +484,7 @@ def build_get_job_request(
         "jobId": _SERIALIZER.url("job_id", job_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -533,9 +501,7 @@ def build_get_quota_metrics_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -549,7 +515,7 @@ def build_get_quota_metrics_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -566,9 +532,7 @@ def build_get_endpoint_health_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -582,7 +546,7 @@ def build_get_endpoint_health_request(
         "iotHubName": _SERIALIZER.url("iot_hub_name", iot_hub_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -597,9 +561,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -611,7 +573,7 @@ def build_check_name_availability_request(subscription_id: str, **kwargs: Any) -
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -630,9 +592,7 @@ def build_test_all_routes_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -647,7 +607,7 @@ def build_test_all_routes_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -666,9 +626,7 @@ def build_test_route_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -683,7 +641,7 @@ def build_test_route_request(
         "resourceGroupName": _SERIALIZER.url("resource_group_name", resource_group_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -702,9 +660,7 @@ def build_list_keys_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -718,7 +674,7 @@ def build_list_keys_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -735,9 +691,7 @@ def build_get_keys_for_key_name_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -752,7 +706,7 @@ def build_get_keys_for_key_name_request(
         "keyName": _SERIALIZER.url("key_name", key_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -769,9 +723,7 @@ def build_export_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -786,7 +738,7 @@ def build_export_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -805,9 +757,7 @@ def build_import_devices_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -822,7 +772,7 @@ def build_import_devices_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -853,6 +803,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.IotHubDescription:
@@ -880,8 +831,8 @@ def get(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _m
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
 
@@ -939,8 +890,8 @@ def _create_or_update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -948,7 +899,7 @@ def _create_or_update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_description, (IO, bytes)):
+        if isinstance(iot_hub_description, (IOBase, bytes)):
             _content = iot_hub_description
         else:
             _json = self._serialize.body(iot_hub_description, "IotHubDescription")
@@ -1135,8 +1086,8 @@ def begin_create_or_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -1197,8 +1148,8 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -1206,7 +1157,7 @@ def _update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(iot_hub_tags, (IO, bytes)):
+        if isinstance(iot_hub_tags, (IOBase, bytes)):
             _content = iot_hub_tags
         else:
             _json = self._serialize.body(iot_hub_tags, "TagsResource")
@@ -1364,8 +1315,8 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
@@ -1431,8 +1382,8 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[Union[_models.IotHubDescription, _models.ErrorDetails]] = kwargs.pop("cls", None)
 
@@ -1514,8 +1465,8 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.IotHubDescription] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
@@ -1573,8 +1524,8 @@ def list_by_subscription(self, **kwargs: Any) -> Iterable["_models.IotHubDescrip
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1661,8 +1612,8 @@ def list_by_resource_group(self, resource_group_name: str, **kwargs: Any) -> Ite
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.IotHubDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1761,8 +1712,8 @@ def get_stats(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.RegistryStatistics] = kwargs.pop("cls", None)
 
@@ -1823,8 +1774,8 @@ def get_valid_skus(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.IotHubSkuDescriptionListResult] = kwargs.pop("cls", None)
 
@@ -1924,8 +1875,8 @@ def list_event_hub_consumer_groups(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupsListResult] = kwargs.pop("cls", None)
 
@@ -2033,8 +1984,8 @@ def get_event_hub_consumer_group(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
 
@@ -2194,8 +2145,8 @@ def create_event_hub_consumer_group(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.EventHubConsumerGroupInfo] = kwargs.pop("cls", None)
@@ -2203,7 +2154,7 @@ def create_event_hub_consumer_group(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(consumer_group_body, (IO, bytes)):
+        if isinstance(consumer_group_body, (IOBase, bytes)):
             _content = consumer_group_body
         else:
             _json = self._serialize.body(consumer_group_body, "EventHubConsumerGroupBodyDescription")
@@ -2281,8 +2232,8 @@ def delete_event_hub_consumer_group(  # pylint: disable=inconsistent-return-stat
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[None] = kwargs.pop("cls", None)
 
@@ -2339,8 +2290,8 @@ def list_jobs(self, resource_group_name: str, resource_name: str, **kwargs: Any)
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.JobResponseListResult] = kwargs.pop("cls", None)
 
@@ -2444,8 +2395,8 @@ def get_job(self, resource_group_name: str, resource_name: str, job_id: str, **k
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
 
@@ -2507,8 +2458,8 @@ def get_quota_metrics(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.IotHubQuotaMetricInfoListResult] = kwargs.pop("cls", None)
 
@@ -2603,8 +2554,8 @@ def get_endpoint_health(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.EndpointHealthDataListResult] = kwargs.pop("cls", None)
 
@@ -2748,8 +2699,8 @@ def check_name_availability(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.IotHubNameAvailabilityInfo] = kwargs.pop("cls", None)
@@ -2757,7 +2708,7 @@ def check_name_availability(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(operation_inputs, (IO, bytes)):
+        if isinstance(operation_inputs, (IOBase, bytes)):
             _content = operation_inputs
         else:
             _json = self._serialize.body(operation_inputs, "OperationInputs")
@@ -2890,8 +2841,8 @@ def test_all_routes(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestAllRoutesResult] = kwargs.pop("cls", None)
@@ -2899,7 +2850,7 @@ def test_all_routes(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestAllRoutesInput")
@@ -3034,8 +2985,8 @@ def test_route(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.TestRouteResult] = kwargs.pop("cls", None)
@@ -3043,7 +2994,7 @@ def test_route(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(input, (IO, bytes)):
+        if isinstance(input, (IOBase, bytes)):
             _content = input
         else:
             _json = self._serialize.body(input, "TestRouteInput")
@@ -3110,8 +3061,8 @@ def list_keys(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRuleListResult] = kwargs.pop("cls", None)
 
@@ -3217,8 +3168,8 @@ def get_keys_for_key_name(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.SharedAccessSignatureAuthorizationRule] = kwargs.pop("cls", None)
 
@@ -3370,8 +3321,8 @@ def export_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -3379,7 +3330,7 @@ def export_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(export_devices_parameters, (IO, bytes)):
+        if isinstance(export_devices_parameters, (IOBase, bytes)):
             _content = export_devices_parameters
         else:
             _json = self._serialize.body(export_devices_parameters, "ExportDevicesRequest")
@@ -3534,8 +3485,8 @@ def import_devices(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.JobResponse] = kwargs.pop("cls", None)
@@ -3543,7 +3494,7 @@ def import_devices(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(import_devices_parameters, (IO, bytes)):
+        if isinstance(import_devices_parameters, (IOBase, bytes)):
             _content = import_devices_parameters
         else:
             _json = self._serialize.body(import_devices_parameters, "ImportDevicesRequest")
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_operations.py
index e4d6427b261b..b5bd2bc80ad3 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Iterable, Optional, TypeVar
 import urllib.parse
 
@@ -30,10 +29,6 @@
 from ..._serialization import Serializer
 from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,9 +40,7 @@ def build_list_request(**kwargs: Any) -> HttpRequest:
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -80,6 +73,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
@@ -93,8 +87,8 @@ def list(self, **kwargs: Any) -> Iterable["_models.Operation"]:
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.OperationListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_private_endpoint_connections_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_private_endpoint_connections_operations.py
index a983c9dc1d69..3c3bce277fa4 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_private_endpoint_connections_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_private_endpoint_connections_operations.py
@@ -6,7 +6,7 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
+from io import IOBase
 from typing import Any, Callable, Dict, IO, List, Optional, TypeVar, Union, cast, overload
 
 from azure.core.exceptions import (
@@ -28,12 +28,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -47,9 +43,7 @@ def build_list_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -63,7 +57,7 @@ def build_list_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -84,9 +78,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -103,7 +95,7 @@ def build_get_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -124,9 +116,7 @@ def build_update_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
     accept = _headers.pop("Accept", "application/json")
 
@@ -144,7 +134,7 @@ def build_update_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -167,9 +157,7 @@ def build_delete_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -186,7 +174,7 @@ def build_delete_request(
         ),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -215,6 +203,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(
@@ -244,8 +233,8 @@ def list(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[List[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
@@ -314,8 +303,8 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
 
@@ -374,8 +363,8 @@ def _update_initial(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
@@ -383,7 +372,7 @@ def _update_initial(
         content_type = content_type or "application/json"
         _json = None
         _content = None
-        if isinstance(private_endpoint_connection, (IO, bytes)):
+        if isinstance(private_endpoint_connection, (IOBase, bytes)):
             _content = private_endpoint_connection
         else:
             _json = self._serialize.body(private_endpoint_connection, "PrivateEndpointConnection")
@@ -564,8 +553,8 @@ def begin_update(
         _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         content_type: Optional[str] = kwargs.pop("content_type", _headers.pop("Content-Type", None))
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
@@ -626,8 +615,8 @@ def _delete_initial(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[Optional[_models.PrivateEndpointConnection]] = kwargs.pop("cls", None)
 
@@ -708,8 +697,8 @@ def begin_delete(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.PrivateEndpointConnection] = kwargs.pop("cls", None)
         polling: Union[bool, PollingMethod] = kwargs.pop("polling", True)
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_private_link_resources_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_private_link_resources_operations.py
index e42d4f2a3d8a..6b38e9ff0243 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_private_link_resources_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_private_link_resources_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -45,9 +40,7 @@ def build_list_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -61,7 +54,7 @@ def build_list_request(
         "resourceName": _SERIALIZER.url("resource_name", resource_name, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -78,9 +71,7 @@ def build_get_request(
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -95,7 +86,7 @@ def build_get_request(
         "groupId": _SERIALIZER.url("group_id", group_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -124,6 +115,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _models.PrivateLinkResources:
@@ -151,8 +143,8 @@ def list(self, resource_group_name: str, resource_name: str, **kwargs: Any) -> _
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.PrivateLinkResources] = kwargs.pop("cls", None)
 
@@ -221,8 +213,8 @@ def get(
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.GroupIdInformation] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_resource_provider_common_operations.py b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_resource_provider_common_operations.py
index 796b7b45ae0d..a9315139fd16 100644
--- a/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_resource_provider_common_operations.py
+++ b/sdk/iothub/azure-mgmt-iothub/azure/mgmt/iothub/v2022_11_15_preview/operations/_resource_provider_common_operations.py
@@ -6,7 +6,6 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
-import sys
 from typing import Any, Callable, Dict, Optional, TypeVar
 
 from azure.core.exceptions import (
@@ -26,12 +25,8 @@
 
 from .. import models as _models
 from ..._serialization import Serializer
-from .._vendor import _convert_request, _format_url_section
+from .._vendor import _convert_request
 
-if sys.version_info >= (3, 8):
-    from typing import Literal  # pylint: disable=no-name-in-module, ungrouped-imports
-else:
-    from typing_extensions import Literal  # type: ignore  # pylint: disable=ungrouped-imports
 T = TypeVar("T")
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
@@ -43,9 +38,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
     _headers = case_insensitive_dict(kwargs.pop("headers", {}) or {})
     _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-    api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-        "api_version", _params.pop("api-version", "2022-11-15-preview")
-    )
+    api_version: str = kwargs.pop("api_version", _params.pop("api-version", "2022-11-15-preview"))
     accept = _headers.pop("Accept", "application/json")
 
     # Construct URL
@@ -54,7 +47,7 @@ def build_get_subscription_quota_request(subscription_id: str, **kwargs: Any) ->
         "subscriptionId": _SERIALIZER.url("subscription_id", subscription_id, "str"),
     }
 
-    _url: str = _format_url_section(_url, **path_format_arguments)  # type: ignore
+    _url: str = _url.format(**path_format_arguments)  # type: ignore
 
     # Construct parameters
     _params["api-version"] = _SERIALIZER.query("api_version", api_version, "str")
@@ -83,6 +76,7 @@ def __init__(self, *args, **kwargs):
         self._config = input_args.pop(0) if input_args else kwargs.pop("config")
         self._serialize = input_args.pop(0) if input_args else kwargs.pop("serializer")
         self._deserialize = input_args.pop(0) if input_args else kwargs.pop("deserializer")
+        self._api_version = input_args.pop(0) if input_args else kwargs.pop("api_version")
 
     @distributed_trace
     def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuotaListResult:
@@ -106,8 +100,8 @@ def get_subscription_quota(self, **kwargs: Any) -> _models.UserSubscriptionQuota
         _headers = kwargs.pop("headers", {}) or {}
         _params = case_insensitive_dict(kwargs.pop("params", {}) or {})
 
-        api_version: Literal["2022-11-15-preview"] = kwargs.pop(
-            "api_version", _params.pop("api-version", "2022-11-15-preview")
+        api_version: str = kwargs.pop(
+            "api_version", _params.pop("api-version", self._api_version or "2022-11-15-preview")
         )
         cls: ClsType[_models.UserSubscriptionQuotaListResult] = kwargs.pop("cls", None)
 
diff --git a/sdk/iothub/azure-mgmt-iothub/generated_samples/iot_hub_manual_failover.py b/sdk/iothub/azure-mgmt-iothub/generated_samples/iot_hub_manual_failover.py
index 071b2a1672d7..e565bd286620 100644
--- a/sdk/iothub/azure-mgmt-iothub/generated_samples/iot_hub_manual_failover.py
+++ b/sdk/iothub/azure-mgmt-iothub/generated_samples/iot_hub_manual_failover.py
@@ -29,12 +29,11 @@ def main():
         subscription_id="91d12660-3dec-467a-be2a-213b5544ddc0",
     )
 
-    response = client.iot_hub.begin_manual_failover(
+    client.iot_hub.begin_manual_failover(
         iot_hub_name="testHub",
         resource_group_name="myResourceGroup",
         failover_input={"failoverRegion": "testHub"},
     ).result()
-    print(response)
 
 
 # x-ms-original-file: specification/iothub/resource-manager/Microsoft.Devices/stable/2021-07-02/examples/IotHub_ManualFailover.json
diff --git a/sdk/iothub/azure-mgmt-iothub/generated_samples/iothub_certificatesdelete.py b/sdk/iothub/azure-mgmt-iothub/generated_samples/iothub_certificatesdelete.py
index c08c1cf420da..e46522dd52a1 100644
--- a/sdk/iothub/azure-mgmt-iothub/generated_samples/iothub_certificatesdelete.py
+++ b/sdk/iothub/azure-mgmt-iothub/generated_samples/iothub_certificatesdelete.py
@@ -29,13 +29,12 @@ def main():
         subscription_id="91d12660-3dec-467a-be2a-213b5544ddc0",
     )
 
-    response = client.certificates.delete(
+    client.certificates.delete(
         resource_group_name="myResourceGroup",
         resource_name="myhub",
         certificate_name="cert",
         if_match="AAAAAAAADGk=",
     )
-    print(response)
 
 
 # x-ms-original-file: specification/iothub/resource-manager/Microsoft.Devices/stable/2021-07-02/examples/iothub_certificatesdelete.json
diff --git a/sdk/iothub/azure-mgmt-iothub/generated_samples/iothub_deleteconsumergroup.py b/sdk/iothub/azure-mgmt-iothub/generated_samples/iothub_deleteconsumergroup.py
index 031aa4c9f71f..50ea13768510 100644
--- a/sdk/iothub/azure-mgmt-iothub/generated_samples/iothub_deleteconsumergroup.py
+++ b/sdk/iothub/azure-mgmt-iothub/generated_samples/iothub_deleteconsumergroup.py
@@ -29,13 +29,12 @@ def main():
         subscription_id="91d12660-3dec-467a-be2a-213b5544ddc0",
     )
 
-    response = client.iot_hub_resource.delete_event_hub_consumer_group(
+    client.iot_hub_resource.delete_event_hub_consumer_group(
         resource_group_name="myResourceGroup",
         resource_name="testHub",
         event_hub_endpoint_name="events",
         name="test",
     )
-    print(response)
 
 
 # x-ms-original-file: specification/iothub/resource-manager/Microsoft.Devices/stable/2021-07-02/examples/iothub_deleteconsumergroup.json
diff --git a/sdk/iothub/azure-mgmt-iothub/generated_samples/iothub_patch.py b/sdk/iothub/azure-mgmt-iothub/generated_samples/iothub_patch.py
new file mode 100644
index 000000000000..aa484be11804
--- /dev/null
+++ b/sdk/iothub/azure-mgmt-iothub/generated_samples/iothub_patch.py
@@ -0,0 +1,42 @@
+# coding=utf-8
+# --------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# Code generated by Microsoft (R) AutoRest Code Generator.
+# Changes may cause incorrect behavior and will be lost if the code is regenerated.
+# --------------------------------------------------------------------------
+
+from azure.identity import DefaultAzureCredential
+from azure.mgmt.iothub import IotHubClient
+
+"""
+# PREREQUISITES
+    pip install azure-identity
+    pip install azure-mgmt-iothub
+# USAGE
+    python iothub_patch.py
+
+    Before run the sample, please set the values of the client ID, tenant ID and client secret
+    of the AAD application as environment variables: AZURE_CLIENT_ID, AZURE_TENANT_ID,
+    AZURE_CLIENT_SECRET. For more info about how to get the value, please see:
+    https://docs.microsoft.com/azure/active-directory/develop/howto-create-service-principal-portal
+"""
+
+
+def main():
+    client = IotHubClient(
+        credential=DefaultAzureCredential(),
+        subscription_id="91d12660-3dec-467a-be2a-213b5544ddc0",
+    )
+
+    response = client.iot_hub_resource.begin_update(
+        resource_group_name="myResourceGroup",
+        resource_name="myHub",
+        iot_hub_tags={"tags": {"foo": "bar"}},
+    ).result()
+    print(response)
+
+
+# x-ms-original-file: specification/iothub/resource-manager/Microsoft.Devices/stable/2021-07-02/examples/iothub_patch.json
+if __name__ == "__main__":
+    main()