Get the source language when translating with "auto" on Google Translate

[PlugNPush]

I need to know what the original language was for the text that got translated over Google Translate, could this be added to this library?

Something like .translate_with_metadata() returning both the text and source language, and maybe even some extra data if the Google Translate API gives them to you.

My previous library for translation used to do this and got abandoned (googletrans), I would appreciate having it here.