code: def __repr__(self):
      return self.__str__()
  
imports: import logging
  from typing import List, Optional
  from fate.arch.federation.api import PartyMeta
  from fate.arch.federation.message_queue import MessageQueueBasedFederation
  from ._mq_channel import DEFAULT_CLUSTER, DEFAULT_SUBSCRIPTION_NAME, DEFAULT_TENANT, MQChannel
  from ._pulsar_manager import PulsarManager
label_desc: Use image node_id 3 for calling the MQ obj's underlying member method code with example usage: obj.__repr__() and returns: self