def METHOD_NAME(argv):
    """Parse command line arguments"""
    parser = argparse.ArgumentParser(description="Update FV3 input.nml file for restart.")
    parser.add_argument(
        "-r", "--run_dir",
        dest="run_dir",
        required=True,
        help="Run directory."
    )
    parser.add_argument(
        "-p", "--path-to-defns",
        dest="path_to_defns",
        required=True,
        help="Path to var_defns file.",
    )
    parser.add_argument(
        "--restart", 
        action='store_true',
        help='Update for restart')
    parser.add_argument(
        "--aqm_na_13km", 
        action='store_true',
        help='Update for AQM_NA_13km in air quality modeling')
    return parser.METHOD_NAME(argv)