How to use the nhentai.parser.tag_parser function in nhentai

# check your cookie
    check_cookie()

    index = 0
    doujinshis = []
    doujinshi_ids = []
    doujinshi_list = []

    if options.favorites:
        if not options.is_download:
            logger.warning('You do not specify --download option')

        doujinshis = favorites_parser(options.page_range)

    elif options.tag:
        doujinshis = tag_parser(options.tag, sorting=options.sorting, max_page=options.max_page)

    elif options.artist:
        index = 1

    elif options.character:
        index = 2

    elif options.parody:
        index = 3

    elif options.group:
        index = 4

    elif options.language:
        index = 5

index = 3

    elif options.group:
        index = 4

    elif options.language:
        index = 5

    elif options.keyword:
        doujinshis = search_parser(options.keyword, sorting=options.sorting, page=options.page)

    elif not doujinshi_ids:
        doujinshi_ids = options.id

    if index:
        doujinshis = tag_parser(options.language, max_page=options.max_page, index=index)

    print_doujinshi(doujinshis)
    if options.is_download and doujinshis:
        doujinshi_ids = [i['id'] for i in doujinshis]

        if options.is_save_download_history:
            with DB() as db:
                data = set(db.get_all())

            doujinshi_ids = list(set(doujinshi_ids) - data)

    if doujinshi_ids:
        for i, id_ in enumerate(doujinshi_ids):
            if options.delay:
                time.sleep(options.delay)