def METHOD_NAME(self, parser):
    parser.add_argument(
        '--show-progress',
        action='store_true',
        help='Prints out one dot every 1000 (one thousand) metadata processed'
    )
    parser.add_argument(
        '--num-threads',
        type=int,
        default=2,
        help='Number of simultaneous parallel threads to work'
    )