Getting user language from Google authentication process

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Is it possible to get the language of the user when logging in via Google Authentication? Currently I'm taking them to a post-create page prompting for language, but it occurs to me that I could probably get that via the auth process.

What have you tried so far?

Tried editing google_auth.dart with various bits of code I've found but that didn't work.

Did you check FlutterFlow's Documentation for this topic?

Yes