code: def display(self):
      s = super().display()
      if self.turn_cnt == 0:
          s += "\n==============================\n"
      return s
  
imports: import copy
  import random
  from typing import Any, Dict, List, Optional
  from parlai.agents.fixed_response.fixed_response import FixedResponseAgent
  from parlai.core.agents import Agent
  from parlai.core.worlds import create_task, DialogPartnerWorld, validate
  from parlai.core.message import Message
label_desc: Use image node_id 6 for calling the SelfChatWorld obj's underlying member method code with example usage: obj.display() and returns: s