code: def episode_done(self):
      return self.turn_cnt >= self.max_turn_cnt
  
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 7 for calling the SelfChatWorld obj's underlying member method code with example usage: obj.episode_done() and returns: unknown