code: def req(self, message_id, timeout):
          '''Re-queue a message'''
          return self.send(constants.REQ + ' ' + message_id + ' ' + str(timeout)f req(self, message_id, timeout):
          '''Re-queue a message'''
          return self.send(constants.REQ + ' ' + message_id + ' ' + str(timeout))
docs: Re-queue a message