Add method to get account quota

[WindowsNT]

It would be useful to notify the user "hey, you can still call model X for Y tokens".

[github-actions]

Thanks for opening this feature request, @WindowsNT!

I've labeled this as an enhancement. This would be a useful addition to help applications inform users about their remaining quota before making API calls.

To help scope this feature better, could you provide a bit more detail:

• Which SDK(s) are you using or would this be needed for all of them (Node.js, Python, Go, .NET)?
• Would you need real-time quota information, or would it be acceptable to check once at session creation?
• What information would be most useful (e.g., remaining tokens, remaining requests, reset time)?

This will help the team understand the use case better when they evaluate this request.

AI generated by Issue Triage Agent

[WindowsNT]

Python mainly, generally only an estimation is needed, all features would be welcomed.