code: def load_openers_from_file(filepath: str) -> List[str]:
      openers = []
      with open(filepath, "r") as f:
          openers = [l.strip() for l in f]
      return openers
  
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 2 for calling a global function with example usage: load_openers_from_file(filepath) and returns: openers