rename Preconditions to GrpcPreconditions
diff --git a/src/csharp/Grpc.Core/AsyncAuthInterceptor.cs b/src/csharp/Grpc.Core/AsyncAuthInterceptor.cs
index 5c9ab04..1ad2290 100644
--- a/src/csharp/Grpc.Core/AsyncAuthInterceptor.cs
+++ b/src/csharp/Grpc.Core/AsyncAuthInterceptor.cs
@@ -61,8 +61,8 @@
/// </summary>
public AuthInterceptorContext(string serviceUrl, string methodName)
{
- this.serviceUrl = Preconditions.CheckNotNull(serviceUrl);
- this.methodName = Preconditions.CheckNotNull(methodName);
+ this.serviceUrl = GrpcPreconditions.CheckNotNull(serviceUrl);
+ this.methodName = GrpcPreconditions.CheckNotNull(methodName);
}
/// <summary>