Polish machinelearning (Azure#32665)

* show serialized names

* setp one

* a few update

* update

* final polish

* fix compilation error

Author: ArcturusZhang

sdk/machinelearningservices/Azure.ResourceManager.MachineLearning/api/Azure.ResourceManager.MachineLearning.netstandard2.0.cs

@@ -0,0 +1,39 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+#nullable disable
+
+using System.Text.Json;
+using Azure.Core;
+
+namespace Azure.ResourceManager.MachineLearning.Models
+{
+    public partial class MachineLearningPartialManagedServiceIdentity : IUtf8JsonSerializable
+    {
+        void IUtf8JsonSerializable.Write(Utf8JsonWriter writer)
+        {
+            writer.WriteStartObject();
+            if (Optional.IsDefined(ManagedServiceIdentityType))
+            {
+                writer.WritePropertyName("type");
+                writer.WriteStringValue(ManagedServiceIdentityType.Value.ToString());
+            }
+            if (Optional.IsCollectionDefined(UserAssignedIdentities))
+            {
+                writer.WritePropertyName("userAssignedIdentities");
+                writer.WriteStartObject();
+                foreach (var item in UserAssignedIdentities)
+                {
+                    writer.WritePropertyName(item.Key);
+#if NET6_0_OR_GREATER
+				writer.WriteRawValue(item.Value);
+#else
+                    JsonSerializer.Serialize(writer, JsonDocument.Parse(item.Value.ToString()).RootElement);
+#endif
+                }
+                writer.WriteEndObject();
+            }
+            writer.WriteEndObject();
+        }
+    }
+}

sdk/machinelearningservices/Azure.ResourceManager.MachineLearning/src/Customized/MachineLearningPartialManagedServiceIdentity.Serialization.cs

@@ -0,0 +1,62 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+#nullable disable
+
+using System;
+using System.Collections.Generic;
+using Azure.Core;
+
+[assembly:CodeGenSuppressType("MachineLearningPartialManagedServiceIdentity")]
+namespace Azure.ResourceManager.MachineLearning.Models
+{
+    /// <summary>
+    /// Managed service identity (system assigned and/or user assigned identities)
+    /// </summary>
+    public partial class MachineLearningPartialManagedServiceIdentity
+    {
+        /// <summary> Initializes a new instance of PartialManagedServiceIdentity. </summary>
+        public MachineLearningPartialManagedServiceIdentity()
+        {
+            UserAssignedIdentities = new ChangeTrackingDictionary<string, BinaryData>();
+        }
+
+        /// <summary>
+        /// Managed service identity (system assigned and/or user assigned identities)
+        /// Serialized Name: PartialManagedServiceIdentity.type
+        /// </summary>
+        public Azure.ResourceManager.Models.ManagedServiceIdentityType? ManagedServiceIdentityType { get; set; }
+        /// <summary>
+        /// The set of user assigned identities associated with the resource. The userAssignedIdentities dictionary keys will be ARM resource ids in the form: &apos;/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ManagedIdentity/userAssignedIdentities/{identityName}. The dictionary values can be empty objects ({}) in requests.
+        /// Serialized Name: PartialManagedServiceIdentity.userAssignedIdentities
+        /// <para>
+        /// To assign an object to the value of this property use <see cref="BinaryData.FromObjectAsJson{T}(T, System.Text.Json.JsonSerializerOptions?)"/>.
+        /// </para>
+        /// <para>
+        /// To assign an already formated json string to this property use <see cref="BinaryData.FromString(string)"/>.
+        /// </para>
+        /// <para>
+        /// Examples:
+        /// <list type="bullet">
+        /// <item>
+        /// <term>BinaryData.FromObjectAsJson("foo")</term>
+        /// <description>Creates a payload of "foo".</description>
+        /// </item>
+        /// <item>
+        /// <term>BinaryData.FromString("\"foo\"")</term>
+        /// <description>Creates a payload of "foo".</description>
+        /// </item>
+        /// <item>
+        /// <term>BinaryData.FromObjectAsJson(new { key = "value" })</term>
+        /// <description>Creates a payload of { "key": "value" }.</description>
+        /// </item>
+        /// <item>
+        /// <term>BinaryData.FromString("{\"key\": \"value\"}")</term>
+        /// <description>Creates a payload of { "key": "value" }.</description>
+        /// </item>
+        /// </list>
+        /// </para>
+        /// </summary>
+        public IDictionary<string, BinaryData> UserAssignedIdentities { get; }
+    }
+}