Feature Request: Ability to use Rev.AI multilingual transcript language setting

[Meadows0156]

I have been working with batchalign and noticed that the --lang switch doesn't allow for the ability to tell Rev.AI to use the "en/es" code that is available for transcripts that have both English and Spanish. I'd love to see this in the future, because Rev.AI's speaker tagging is super helpful for processing transcripts over Whisper!

[Jemoka]

we use 3 letters language codes, and translate for you.
So, eng, spa, etc.