def METHOD_NAME(argv):
    """Parse command line arguments"""
    parser = argparse.ArgumentParser(description="Set surface climatology fields.")
    parser.add_argument(
        "-p",
        "--path-to-defns",
        dest="path_to_defns",
        required=True,
        help="Path to var_defns file.",
    )
    parser.add_argument('-d', '--debug', action='store_true',
                        help='Script will be run in debug mode with more verbose output')
    return parser.METHOD_NAME(argv)