How to use the solaar.cli.print_help function in solaar

arg_parser.add_argument('-d', '--debug', action='count', default=0,
							help='print logging messages, for debugging purposes (may be repeated for extra verbosity)')
	arg_parser.add_argument('-D', '--hidraw', action='store', dest='hidraw_path', metavar='PATH',
							help='unifying receiver to use; the first detected receiver if unspecified. Example: /dev/hidraw2')
	arg_parser.add_argument('--restart-on-wake-up', action='store_true',
							help='restart Solaar on sleep wake-up (experimental)')
	arg_parser.add_argument('-V', '--version', action='version', version='%(prog)s ' + __version__)
	arg_parser.add_argument('--help-actions', action='store_true',
							help='print help for the optional actions')
	arg_parser.add_argument('action', nargs=argparse.REMAINDER, choices=_cli.actions,
							help='optional actions to perform')

	args = arg_parser.parse_args()

	if args.help_actions:
		_cli.print_help()
		return

	import logging
	if args.debug > 0:
		log_level = logging.WARNING - 10 * args.debug
		log_format='%(asctime)s,%(msecs)03d %(levelname)8s [%(threadName)s] %(name)s: %(message)s'
		logging.basicConfig(level=max(log_level, logging.DEBUG), format=log_format, datefmt='%H:%M:%S')
	else:
		logging.root.addHandler(logging.NullHandler())
		logging.root.setLevel(logging.ERROR)

	if not args.action:
		if logging.root.isEnabledFor(logging.INFO):
			logging.info("language %s (%s), translations path %s", _i18n.language, _i18n.encoding, _i18n.path)

	return args