@java.lang.Override
          public TraceServiceStub newStub(
              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
            return new TraceServiceStub(channel, callOptions);
          }
Creates a new async stub that supports all call types for the service
java-trace/grpc-google-cloud-trace-v2/src/main/java/com/google/devtools/cloudtrace/v2/TraceServiceGrpc.java