def METHOD_NAME(subparsers=None):
    synopsis = 'Prepare attributes file for Gamma product.'
    epilog = EXAMPLE
    name = __name__.split('.')[-1]
    parser = create_argument_parser(
        name, synopsis=synopsis, description=synopsis+NOTE, epilog=epilog, subparsers=subparsers)
    parser.add_argument('file', nargs='+', help='Gamma file(s)')
    parser.add_argument('--sensor', dest='sensor', type=str, choices=SENSOR_NAMES,
                        help='SAR sensor')
    return parser