multi factor authentication

Is it possible to use multi factor authentication? I mean I want to use form-based authentication and OTP, such as Google authenticator or similar app.

If yes, are there any sample code available?

I'm not sure if this is not a proper page. If not, please guide me to the right place.

Thank you very much.

The issue names no files, tests, or entry points. Start by reviewing Soteria's existing authentication documentation and APIs for form-based authentication, then determine whether OTP support is already available. Done means documenting a supported approach or defining the missing MFA capability and sample-code requirements.

Written by the indexing model from the issue text.