code: def save_agent(agent, t, outdir, logger, suffix=""):
      dirname = os.path.join(outdir, "{}{}".format(t, suffix))
      agent.save(dirname)
      logger.info("Saved the agent to %s", dirname)
  
imports: import logging
  import multiprocessing
  import os
  import statistics
  import time
  import numpy
  import chainerrl
label_desc: Use image node_id 5 for calling a global function with example usage: save_agent(agent, t, outdir, logger, suffix) without return types