createAuthCredential(), from where paramters?

[Rainer Schleevoigt]

Hello Hans,
great work! How can I create the proxy? After making auth I get a PhoneAuthCredential object, but this object has only getProvider() and getSmsCode(). Howe I can build a TitaniumFirebaseAuthCredentialProxy. For this I need: accessToken, secretToken, providerID and IDToken.

Hope I could explain my problem.