protected boolean isSupported(Method method){
  return !method.getRequestStreaming() && !method.getResponseStreaming();
}

protected boolean isSupported ( Method method ) { return ! method . getRequestStreaming ( ) && ! method . getResponseStreaming ( ) ; }
returns true when the method is supported by the current codegen context . by default , only non stremaing methods are supported unless subclass explicitly allows . todo : remove this method when all languages support grpc streaming .
