def METHOD_NAME(add: Callable[..., None]) -> None:
    """
    Populates the command line flags for certbot._internal.cli.HelpfulParser
    :param add: Add function of certbot._internal.cli.HelpfulParser
    :type add: func
    """
    for enh in _INDEX:
        add(enh["cli_groups"], enh["cli_flag"], action=enh["cli_action"],
            dest=enh["cli_dest"], default=enh["cli_flag_default"],
            help=enh["cli_help"])