1 files changed, 2 insertions, 5 deletions
diff --git a/src/csharp/Grpc.HealthCheck/HealthGrpc.cs b/src/csharp/Grpc.HealthCheck/HealthGrpc.cs
index 24a7259979..1d80bcd59e 100644
--- a/src/csharp/Grpc.HealthCheck/HealthGrpc.cs
+++ b/src/csharp/Grpc.HealthCheck/HealthGrpc.cs
@@ -20,9 +20,6 @@
 #pragma warning disable 1591
 #region Designer generated code
 
-using System;
-using System.Threading;
-using System.Threading.Tasks;
 using grpc = global::Grpc.Core;
 
 namespace Grpc.Health.V1 {
@@ -79,7 +76,7 @@ namespace Grpc.Health.V1 {
       {
       }
 
-      public virtual global::Grpc.Health.V1.HealthCheckResponse Check(global::Grpc.Health.V1.HealthCheckRequest request, grpc::Metadata headers = null, DateTime? deadline = null, CancellationToken cancellationToken = default(CancellationToken))
+      public virtual global::Grpc.Health.V1.HealthCheckResponse Check(global::Grpc.Health.V1.HealthCheckRequest request, grpc::Metadata headers = null, global::System.DateTime? deadline = null, global::System.Threading.CancellationToken cancellationToken = default(global::System.Threading.CancellationToken))
       {
         return Check(request, new grpc::CallOptions(headers, deadline, cancellationToken));
       }
@@ -87,7 +84,7 @@ namespace Grpc.Health.V1 {
       {
         return CallInvoker.BlockingUnaryCall(__Method_Check, null, options, request);
       }
-      public virtual grpc::AsyncUnaryCall<global::Grpc.Health.V1.HealthCheckResponse> CheckAsync(global::Grpc.Health.V1.HealthCheckRequest request, grpc::Metadata headers = null, DateTime? deadline = null, CancellationToken cancellationToken = default(CancellationToken))
+      public virtual grpc::AsyncUnaryCall<global::Grpc.Health.V1.HealthCheckResponse> CheckAsync(global::Grpc.Health.V1.HealthCheckRequest request, grpc::Metadata headers = null, global::System.DateTime? deadline = null, global::System.Threading.CancellationToken cancellationToken = default(global::System.Threading.CancellationToken))
       {
         return CheckAsync(request, new grpc::CallOptions(headers, deadline, cancellationToken));
       }