def METHOD_NAME(parser, name, help, default=False):
    group = parser.add_mutually_exclusive_group(required=False)
    group.METHOD_NAME("--" + name, dest=name, help="Enable "+help, action="store_true")
    group.METHOD_NAME("--!" + name, dest=name, help="Disable "+help, action="store_false")
    parser.set_defaults(**{name:default})