diff --git a/packages/http-client-csharp/generator/Microsoft.Generator.CSharp.ClientModel/src/Providers/MrwSerializationTypeDefinition.cs b/packages/http-client-csharp/generator/Microsoft.Generator.CSharp.ClientModel/src/Providers/MrwSerializationTypeDefinition.cs
index 80b55075be..b4e794f93a 100644
--- a/packages/http-client-csharp/generator/Microsoft.Generator.CSharp.ClientModel/src/Providers/MrwSerializationTypeDefinition.cs
+++ b/packages/http-client-csharp/generator/Microsoft.Generator.CSharp.ClientModel/src/Providers/MrwSerializationTypeDefinition.cs
@@ -2,7 +2,6 @@
 // Licensed under the MIT License.
 
 using System;
-using System.ClientModel;
 using System.ClientModel.Primitives;
 using System.Collections.Generic;
 using System.Diagnostics;
@@ -26,7 +25,7 @@ namespace Microsoft.Generator.CSharp.ClientModel.Providers
     /// <summary>
     /// This class provides the set of serialization models, methods, and interfaces for a given model.
     /// </summary>
-    internal class MrwSerializationTypeDefinition : TypeProvider
+    public class MrwSerializationTypeDefinition : TypeProvider
     {
         private const string JsonModelWriteCoreMethodName = "JsonModelWriteCore";
         private const string JsonModelCreateCoreMethodName = "JsonModelCreateCore";
diff --git a/packages/http-client-csharp/generator/Microsoft.Generator.CSharp/src/TypeFactory.cs b/packages/http-client-csharp/generator/Microsoft.Generator.CSharp/src/TypeFactory.cs
index 5dbaecfa82..e6f4f10277 100644
--- a/packages/http-client-csharp/generator/Microsoft.Generator.CSharp/src/TypeFactory.cs
+++ b/packages/http-client-csharp/generator/Microsoft.Generator.CSharp/src/TypeFactory.cs
@@ -151,7 +151,7 @@ protected internal TypeFactory()
             return modelProvider;
         }
 
-        private ModelProvider? CreateModelCore(InputModelType model)
+        protected virtual ModelProvider? CreateModelCore(InputModelType model)
         {
             ModelProvider? type = new ModelProvider(model);
             if (Visitors.Count == 0)