How to use the ykdl.common.url_to_module function in ykdl

})
        handlers.append(proxy_handler)

    elif args.socks_proxy:
        try:
            import socks
            addr, port = args.socks_proxy.split(':')
            socks.set_default_proxy(socks.SOCKS5, addr, int(port))
            socket.socket = socks.socksocket
        except:
            print('Failed to set socks5 proxy. Please install PySocks.', file=sys.stderr)

    opener = build_opener(*handlers)
    install_opener(opener)

    m, u = url_to_module(args.video_url)
    info = m.parser(u)

    # Is a playlist?
    if m.list_only():
        video_list = m.prepare_list()
        result = [ {'title': match1(get_content(url), r'<title>(.+?)</title>'), 'url': url} for url in video_list ]
    else:
        result = info.jsonlize()
    print(json.dumps(result, indent=4, sort_keys=True, ensure_ascii=False))

def _parser(self, video_info):
        if 'info' in video_info:
            return video_info['info']

        elif 'site' in video_info:
            site = video_info['site']
            vid = video_info['vid']
            if site in alias.keys():
                site = alias[site]
            s = import_module('.'.join(['ykdl','extractors',site])).site
            info = s.parser(vid)
 
        elif 'url' in video_info:
            url = video_info['url']
            s, u = url_to_module(url)
            info = s.parser(u)

        if 'title' in video_info:
            info.title = video_info['title']
        if 'artist' in video_info:
            info.artist = video_info['artist']
        if 'extra' in video_info and video_info['extra']:
            info.extra.update(video_info['extra'])

        return info

def check_stream(self):
        logger.debug(self.fname)
        site, url = url_to_module(self.url)
        try:
            info = site.parser(url)
        except AssertionError:
            return
        stream_id = info.stream_types[0]
        urls = info.streams[stream_id]['src']
        self.ydl_opts['absurl'] = urls[0]
        # print(info.title)
        return True