Update

Author: Y-Sindo

src/Microsoft.Azure.SignalR.Protocols/Models/GroupMemberQueryResponsePayload.cs renamed to src/Microsoft.Azure.SignalR.Protocols/Models/GroupMemberQueryResponse.cs

@@ -6,7 +6,7 @@
 
 namespace Microsoft.Azure.SignalR.Protocol;
 
-public sealed class GroupMemberQueryResponsePayload : IMessagePackSerializable
+public sealed class GroupMemberQueryResponse : IMessagePackSerializable
 {
     /// <summary>
     /// The group members.

src/Microsoft.Azure.SignalR.Protocols/ServiceMessage.cs

@@ -576,7 +576,7 @@ public ServiceMappingMessage(string invocationId, string connectionId, string in
     /// <summary>
     /// A message to list connections in a group.
     /// </summary>
-    /// <remarks>The expected response of this message is an <see cref="AckMessage"/> whose <see cref="AckMessage.Payload"/> is a serialized <see cref="GroupMemberQueryResponsePayload"/>.</remarks>
+    /// <remarks>The expected response of this message is an <see cref="AckMessage"/> whose <see cref="AckMessage.Payload"/> is a serialized <see cref="GroupMemberQueryResponse"/>.</remarks>
     public class GroupMemberQueryMessage : ExtensibleServiceMessage, IAckableMessage, IMessageWithTracingId
     {
         /// <summary>
@@ -592,7 +592,7 @@ public class GroupMemberQueryMessage : ExtensibleServiceMessage, IAckableMessage
         /// <summary>
         /// The max count of connections to return.
         /// </summary>
-        public int Max { get; set; }
+        public int Max { get; set; } = 200;
 
         /// <summary>
         /// A token to indiate the start point of results.

test/Microsoft.Azure.SignalR.Protocols.Tests/Models/GroupMemberQueryResponsePayloadTests.cs

@@ -18,15 +18,15 @@ public void TestMessagePackSerialization()
             new GroupMember { ConnectionId = "conn1", UserId = "user1" },
             new GroupMember { ConnectionId = "conn2", UserId = "user2" }
         };
-        var payload = new GroupMemberQueryResponsePayload
+        var payload = new GroupMemberQueryResponse
         {
             Members = groupMembers,
             ContinuationToken = "token"
         };
         var buffer = new ArrayBufferWriter<byte>();
         var protocol = new ServiceProtocol();
         protocol.WriteMessagePayload(payload, buffer);
-        var deserialized = protocol.ParseMessagePayload<GroupMemberQueryResponsePayload>(new
+        var deserialized = protocol.ParseMessagePayload<GroupMemberQueryResponse>(new
             ReadOnlySequence<byte>(buffer.WrittenMemory));
         Assert.Equal(payload.ContinuationToken, deserialized.ContinuationToken);
         Assert.True(payload.Members.SequenceEqual(deserialized.Members));