code: def main():
      
  
      parser = argparse.ArgumentParser(description='%(prog)s add/remove Windows loopback adapters')
      parser.add_argument('-a', "--add", nargs=3, action=parse_add_loopback(), help="add a Windows loopback adapter")
      parser.add_argument("-r", "--remove", action="store", help="remove a Windows loopback adapter")
      try:
          args = parser.parse_args()
      except argparse.ArgumentTypeError as e:
          raise SystemExit(e)
  
      # devcon is required to install/remove Windows loopback adapters
      devcon_path = shutil.which("devcon")
      if not devcon_path:
          raise SystemExit("Could not find devcon.exe")
  
      from win32com.shell import shell
      if not shell.IsUserAnAdmin():
          raise SystemExit("You must run this script as an administrator")
  
      try:
          if args.add:
              add_loopback(devcon_path, args.add[0], args.add[1], args.add[2])
          if args.remove:
              remove_loopback(devcon_path, args.remove)
      except SystemExit as e:
          print(e)
          os.system("pause")
docs: Entry point for the Windows loopback tool.