code: def act(self):
      obs = self.observation
      if obs is None:
          return Message(
              {"text": "Nothing to repeat yet.", "episode_done": False}
          )
      reply = {}
      reply["id"] = self.getID()
      query = obs.get("text", "I don't know")
      # Take last line if there are multiple lines.
      reply["text"] = query.split("\n")[-1]
      if reply["text"] == "":
          reply["text"] = "Nothing to repeat yet."
      reply["episode_done"] = False
      return Message(reply)
  
imports: from parlai.core.agents import Agent
  from parlai.core.message import Message
label_desc: Use image node_id 2 for calling the RepeatQueryAgent obj's underlying member method code with example usage: obj.act() and returns: Message, Message