code: def method_get(self, uri, **kwargs):
          
          for i in six.moves.range(3):
              resp, body = super(CloudDNSClient, self).method_get(uri, **kwargs)
              if body:
                  return resp, body
          raise exc.ServiceResponseFailure("The Cloud DNS service failed to "
                  "respond to the request.")
docs: Overload the method_get function in order to retry on empty body
          responses from the Cloud DNS API