Checklist

• I checked that this feature has not been requested before
• I checked that this feature is not in the "Not planned" list
• This feature will benefit the majority of users

Problem Description / Use Case

Torrentio writes the subtitle language separately for nyaa.si Torrent, but when wrapped in aiostreams, can't see the language value

Proposed Solution

Torrentio writes a separate subtitle language for nyaa.si Torrent, so you must be able to verify the language value even if wrap it in aiostream.