Auth0-java library mfa authentication support

I have a need to use my own custom MFA screens which is leading me down the path of using the ROPF. I was able to get the flow working via Postman, but when it came time to implement the solution, it looks like the auth0-java library does not have helper support for any of these method calls. I can make these calls directly on my own, but it would be nice if the library had support for these necessary calls.

Is there a different library that has this support that I am missing?
Is there a different path that I should be taking?
Is there a way to accomplish this with Spring or is there an example project?