code: def add_cmdline_args(
      cls, parser: ParlaiParser, partial_opt: Optional[Opt] = None
  ) -> ParlaiParser:
      super().add_cmdline_args(parser, partial_opt)
      parser = parser.add_argument_group("ConvAI2 Interactive World")
      parser.add_argument(
          "--display-partner-persona",
          type="bool",
          default=True,
          help="Display your partner persona at the end of the chat",
      )
      return parser
  
imports: from typing import Optional
  from parlai.core.params import ParlaiParser
  from parlai.core.opt import Opt
  from parlai.core.worlds import create_task
  from parlai.agents.fixed_response.fixed_response import FixedResponseAgent
  from parlai.tasks.self_chat.worlds import SelfChatWorld
  from parlai.tasks.interactive.worlds import InteractiveWorld
  import random
label_desc: Use image node_id 1 for calling the InteractiveWorld obj's underlying member method code with example usage: obj.add_cmdline_args(cls, parser, partial_opt) and returns: parser