Describe the problem you'd like to have solved

There is not a neat way to be able to do an MFA login as described here - https://auth0.com/docs/api/authentication?shell#verify-with-one-time-password-otp-

Describe the ideal solution

An mfaLogin method in AuthAPI that allows for an MFA login

Alternatives and current work-arounds

I actually cloned the repo and thought I'd add the method to play around with it.

Additional context

Add any other context or screenshots about the feature request here.