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 lazy_ngettext(self, singular: str, plural: str, lang: str = None, n=1):
        if not babel_imported:
            raise RuntimeError('babel module is not imported. Check that you installed it.')
        return LazyProxy(self.ngettext, singular, plural, lang, n, enable_cache=False)