http://gitunderground.i2p/archive/youtube-dl/src/branch/master/youtube_dl/extractor/googledrive.py
_download_xml ( self . _BASE_URL_CAPTIONS , video_id , query = { 'id' : video_id , 'vid' : subtitles_id , 'hl' : hl , 'v' : video_id , 'type' : 'list' , 'tlangs' : '1' , 'fmts' : '1' , 'vssids' : '1' , }, note = 'Downloading subtitles XML' , errnote = 'Unable to download subtitles XML' , fatal = False ) if self .