code: def main():
      
  
      args = argparser().parse_args(sys.argv[1:])
      password = os.environ.get('PYNETGEAR_PASSWORD') or args.password
  
      netgear = Netgear(password, args.host, args.user, args.port, args.ssl, args.url, args.force_login_v2)
  
      results = run_subcommand(netgear, args)
      formatter = make_formatter(args.format)
  
      if results is None:
          print("Error communicating with the Netgear router")
  
      else:
          formatter(results)
docs: Scan for devices and print results.