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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def main(unused_argv):
 """Run an agent."""

  stopwatch.sw.enabled = FLAGS.profile or FLAGS.trace
  stopwatch.sw.trace = FLAGS.trace

  map_inst = maps.get(FLAGS.map)

  agent_classes = []
  players = []

  agent_module, agent_name = FLAGS.agent.rsplit(".", 1)
  agent_cls = getattr(importlib.import_module(agent_module), agent_name)
  agent_classes.append(agent_cls)
  players.append(sc2_env.Agent(sc2_env.Race[FLAGS.agent_race],
                               FLAGS.agent_name or agent_name))

  if map_inst.players >= 2:
    if FLAGS.agent2 == "Bot":
      players.append(sc2_env.Bot(sc2_env.Race[FLAGS.agent2_race],
                                 sc2_env.Difficulty[FLAGS.difficulty]))
    else:
      agent_module, agent_name = FLAGS.agent2.rsplit(".", 1)
      agent_cls = getattr(importlib.import_module(agent_module), agent_name)
      agent_classes.append(agent_cls)
      players.append(sc2_env.Agent(sc2_env.Race[FLAGS.agent2_race],
                                   FLAGS.agent2_name or agent_name))

  threads = []
  for _ in range(FLAGS.parallel - 1):
    t = threading.Thread(target=run_thread,
                         args=(agent_classes, players, FLAGS.map, False))
    threads.append(t)
    t.start()

  run_thread(agent_classes, players, FLAGS.map, FLAGS.render)

  for t in threads:
    t.join()

  if FLAGS.profile:
    print(stopwatch.sw)