code: def main(args) -> None:
      # Smooth load from potentially many daemons on different machines.
      time.sleep(random.randint(0, args.random_delay_seconds))
  
      db_path = f"{dot_allennlp_dir}/resume.db"
      connection = sqlite3.connect(db_path)
  
      # Create the DB if needed.
      cursor = connection.cursor()
      cursor.execute(
          "SELECT name FROM sqlite_master WHERE type='table' AND name='active_experiments'"
      )
      tables = cursor.fetchall()
      if not tables:
          create_table(connection)
  
      # Modify the crontab if needed.
      crontab_l_result = subprocess.run(
          ["crontab", "-l"],
          universal_newlines=True,
          stdout=PIPE,
          stderr=PIPE,
      )
      if crontab_l_result.returncode == 0:
          current_crontab = crontab_l_result.stdout
      else:
          # `crontab -l` fails when a crontab hasn't been installed previously.
          # Sanity check the error message to guard against blowing away the
          # crontab in some obscure failure case.
          assert (
              "no crontab" in crontab_l_result.stderr
          ), f"crontab failed: {crontab_l_result.stderr}"
          current_crontab = ""
  
      full_path = os.path.abspath(__file__)
      if full_path not in current_crontab:
          # Execute this script every ten minutes. We set the PATH to that used
          # to run this install step to make sure that we have access to python3
          # and beaker.
          cron_line = (
              f"*/10 * * * * bash -c 'export PATH={os.environ['PATH']};"
              f" python3 {full_path} --action=resume --random-delay-seconds=60'\n"
          )
          new_crontab = current_crontab + cron_line
          subprocess.run(
              ["crontab", "-"], input=new_crontab, encoding="utf-8"
          )
  
      if args.action is Action.start:
          assert args.experiment_id
          start_autoresume(
              connection, args.experiment_id, args.max_resumes
          )
      elif args.action is Action.stop:
          assert args.experiment_id
          stop_autoresume(connection, args.experiment_id)
      elif args.action is Action.resume:
          beaker = BeakerWrapper()
          resume(connection, beaker)
      else:
          raise Exception(f"Unaccounted for action {args.action}")
      connection.close()
  
imports: import argparse
  import json
  import logging
  import os
  import random
  import sqlite3
  import subprocess
  import time
  from enum import Enum
  from logging.handlers import RotatingFileHandler
  from sqlite3 import Connection
  from subprocess import PIPE
label_desc: Use image node_id 5 for calling a global function with example usage: main(args) without return types