docs: def _set_status(self, status, result=None):
          """ update operation status
  
          :param str status: New status
          :param cdumay_result.Result result: Execution result
          """
          logger.info(
              "{}.SetStatus: {}[{}] status update '{}' -> '{}'".format(
                  self.__class__.__name__, self.__class__.path, self.uuid,
                  self.status, status
              ),
              extra=dict(
                  kmsg=Message(
                      self.uuid, entrypoint=self.__class__.path,
                      params=self.params
                  ).dump()
              )
          )
          return self.set_status(status, result)