def METHOD_NAME():
    """Parse command line arguments."""
    parser = argparse.ArgumentParser(
        description='Morphology fit distribution extractor',
        epilog='Note: Outputs json of the optimal distribution \
                and corresponding parameters.')
    parser.add_argument('datapaths',
                        nargs='+',
                        help='Morphology data directory paths')
    parser.add_argument('--mtype', choices=MTYPE_GETTERS.keys(),
                        help='Get mtype from filename or parent directory')
    return parser.METHOD_NAME()