Hide internal classes from public interface.

sdk/communication/Azure.Communication.Chat/api/Azure.Communication.Chat.netstandard2.0.cs

@@ -101,29 +101,13 @@ internal ChatThreadInfo() { }
         public System.DateTimeOffset? LastMessageReceivedOn { get { throw null; } }
         public string Topic { get { throw null; } }
     }
-    public partial class ChatThreadInternal
-    {
-        internal ChatThreadInternal() { }
-        public string CreatedBy { get { throw null; } }
-        public System.DateTimeOffset? CreatedOn { get { throw null; } }
-        public string Id { get { throw null; } }
-        public System.Collections.Generic.IReadOnlyList<Azure.Communication.Chat.ChatThreadMemberInternal> Members { get { throw null; } }
-        public string Topic { get { throw null; } }
-    }
     public partial class ChatThreadMember
     {
         public ChatThreadMember(Azure.Communication.CommunicationUser communicationUser) { }
         public string? DisplayName { get { throw null; } set { } }
         public System.DateTimeOffset? ShareHistoryTime { get { throw null; } set { } }
         public Azure.Communication.CommunicationUser User { get { throw null; } set { } }
     }
-    public partial class ChatThreadMemberInternal
-    {
-        public ChatThreadMemberInternal(string id) { }
-        public string DisplayName { get { throw null; } set { } }
-        public string Id { get { throw null; } set { } }
-        public System.DateTimeOffset? ShareHistoryTime { get { throw null; } set { } }
-    }
     public partial class ReadReceipt
     {
         internal ReadReceipt() { }

sdk/communication/Azure.Communication.Chat/src/Models/ChatThreadInternal.cs

@@ -1,14 +1,12 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-using System;
 using Azure.Core;
-using Azure.Communication;
 
 namespace Azure.Communication.Chat
 {
     [CodeGenModel("ChatThread")]
-    public partial class ChatThreadInternal
+    internal partial class ChatThreadInternal
     {
     }
 }

sdk/communication/Azure.Communication.Chat/src/Models/ChatThreadMemberInternal.cs

@@ -1,14 +1,12 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-using System;
 using Azure.Core;
-using Azure.Communication;
 
 namespace Azure.Communication.Chat
 {
     [CodeGenModel("ChatThreadMember")]
-    public partial class ChatThreadMemberInternal
+    internal partial class ChatThreadMemberInternal
     {
         internal ChatThreadMember ToChatThreadMember()
         {