code: public com.google.appengine.v1.StaticFilesHandlerOrBuilder getStaticFilesOrBuilder() {
      if (handlerTypeCase_ == 2) {
         return (com.google.appengine.v1.StaticFilesHandler) handlerType_;
      }
      return com.google.appengine.v1.StaticFilesHandler.getDefaultInstance();
    }
docs: <pre>
  Returns the contents of a file, such as an image, as the response.
  </pre>
  
  <code>.google.appengine.v1.StaticFilesHandler static_files = 2;</code>