def groups_option(f):
    new_func = click.option("-g", "--groups",
                            help="Comma-separated list of requirement groups "
                            "to include.")(f)
    return update_wrapper(new_func, f)
def __init__(self, *args: Any, **kwargs: Any) -> None:
        self._smref: Union['ReferenceType[Submodule]', None] = None
        self._index = None
        self._auto_write = True
        super(SubmoduleConfigParser, self).__init__(*args, **kwargs)