code: def ask_and_save_agent_replay_buffer(agent, t, outdir, suffix=""):
      if hasattr(agent, "replay_buffer") and ask_yes_no(
          "Replay buffer has {} transitions. Do you save them to a file?".format(
              len(agent.replay_buffer)
          )
      ):  # NOQA
          save_agent_replay_buffer(agent, t, outdir, suffix=suffix)
  
file_path: chainerrl/chainerrl/experiments/train_agent.py
imports: import logging
  import os
  from chainerrl.experiments.evaluator import Evaluator
  from chainerrl.experiments.evaluator import save_agent
  from chainerrl.misc.ask_yes_no import ask_yes_no
label_desc: Use image node_id 2 for calling a global function with example usage: ask_and_save_agent_replay_buffer(agent, t, outdir, suffix) without return types