fixing build issue

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

@@ -1857,9 +1857,9 @@ protected MachineLearningWorkspaceConnectionCollection() { }
         public virtual System.Threading.Tasks.Task<Azure.Response<bool>> ExistsAsync(string connectionName, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
         public virtual Azure.Response<Azure.ResourceManager.MachineLearning.MachineLearningWorkspaceConnectionResource> Get(string connectionName, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
         public virtual Azure.Pageable<Azure.ResourceManager.MachineLearning.MachineLearningWorkspaceConnectionResource> GetAll(string target = null, string category = null, bool? includeAll = default(bool?), System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
-        public virtual Azure.Pageable<Azure.ResourceManager.MachineLearning.MachineLearningWorkspaceConnectionResource> GetAll(string target = null, string category = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
+        public virtual Azure.Pageable<Azure.ResourceManager.MachineLearning.MachineLearningWorkspaceConnectionResource> GetAll(string target, string category, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
         public virtual Azure.AsyncPageable<Azure.ResourceManager.MachineLearning.MachineLearningWorkspaceConnectionResource> GetAllAsync(string target = null, string category = null, bool? includeAll = default(bool?), System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
-        public virtual Azure.AsyncPageable<Azure.ResourceManager.MachineLearning.MachineLearningWorkspaceConnectionResource> GetAllAsync(string target = null, string category = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
+        public virtual Azure.AsyncPageable<Azure.ResourceManager.MachineLearning.MachineLearningWorkspaceConnectionResource> GetAllAsync(string target, string category, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
         public virtual System.Threading.Tasks.Task<Azure.Response<Azure.ResourceManager.MachineLearning.MachineLearningWorkspaceConnectionResource>> GetAsync(string connectionName, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
         public virtual Azure.NullableResponse<Azure.ResourceManager.MachineLearning.MachineLearningWorkspaceConnectionResource> GetIfExists(string connectionName, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
         public virtual System.Threading.Tasks.Task<Azure.NullableResponse<Azure.ResourceManager.MachineLearning.MachineLearningWorkspaceConnectionResource>> GetIfExistsAsync(string connectionName, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }

sdk/machinelearningservices/Azure.ResourceManager.MachineLearning/src/Customized/MachineLearningWorkspaceConnectionCollection.cs

@@ -45,7 +45,7 @@ public partial class MachineLearningWorkspaceConnectionCollection : ArmCollectio
         /// <param name="category"> Category of the workspace connection. </param>
         /// <param name="cancellationToken"> The cancellation token to use. </param>
         /// <returns> An async collection of <see cref="MachineLearningWorkspaceConnectionResource"/> that may take multiple service requests to iterate over. </returns>
-        public virtual AsyncPageable<MachineLearningWorkspaceConnectionResource> GetAllAsync(string target = null, string category = null, CancellationToken cancellationToken = default) => GetAllAsync(target, category, null, cancellationToken);
+        public virtual AsyncPageable<MachineLearningWorkspaceConnectionResource> GetAllAsync(string target, string category, CancellationToken cancellationToken = default) => GetAllAsync(target, category, null, cancellationToken);
 
         /// <summary>
         /// Lists all the available machine learning workspaces connections under the specified workspace.
@@ -72,6 +72,6 @@ public partial class MachineLearningWorkspaceConnectionCollection : ArmCollectio
         /// <param name="category"> Category of the workspace connection. </param>
         /// <param name="cancellationToken"> The cancellation token to use. </param>
         /// <returns> A collection of <see cref="MachineLearningWorkspaceConnectionResource"/> that may take multiple service requests to iterate over. </returns>
-        public virtual Pageable<MachineLearningWorkspaceConnectionResource> GetAll(string target = null, string category = null, CancellationToken cancellationToken = default) => GetAll(target, category, null, cancellationToken);
+        public virtual Pageable<MachineLearningWorkspaceConnectionResource> GetAll(string target, string category, CancellationToken cancellationToken = default) => GetAll(target, category, null, cancellationToken);
     }
 }