Add missing properties in schema (Azure#28604)

Signed-off-by: Brynn Yin <biyi@microsoft.com>

Author: brynn-code

sdk/ml/azure-ai-ml/azure/ai/ml/_schema/schedule/schedule.py

@@ -40,3 +40,4 @@ class ScheduleSchema(ResourceSchema):
     creation_context = NestedField(CreationContextSchema, dump_only=True)
     is_enabled = fields.Boolean(dump_only=True)
     provisioning_state = fields.Str(dump_only=True)
+    properties = fields.Dict(keys=fields.Str(), values=fields.Str(allow_none=True))

sdk/ml/azure-ai-ml/azure/ai/ml/dsl/_pipeline_decorator.py

@@ -62,7 +62,7 @@ def pipeline(
     **kwargs,
 ):
     """Build a pipeline which contains all component nodes defined in this
-    function. Set AZURE_ML_CLI_PRIVATE_FEATURES_ENABLED to enable multi layer pipeline.
+    function.
 
     .. note::
 

sdk/ml/azure-ai-ml/tests/schedule/unittests/test_schedule_entity.py

@@ -24,12 +24,13 @@ def simple_schedule_validation(schedule):
             assert type(schedule.trigger) == CronTrigger
 
         schedule = verify_entity_load_and_dump(load_schedule, simple_schedule_validation, test_path)[0]
+        schedule.properties["test"] = "val"
         actual_dict = schedule._to_rest_object().as_dict()["properties"]
         # Skip job definition
         actual_dict["action"]["job_definition"] = {}
         expected_dict = {
             "description": "a weekly retrain schedule",
-            "properties": {},
+            "properties": {"test": "val"},
             "tags": {},
             "action": {"action_type": "CreateJob", "job_definition": {}},
             "display_name": "weekly retrain schedule",