android.hardware.biometrics.fingerprint.ISession createSession(in int sensorId, in int userId, in android.hardware.biometrics.fingerprint.ISessionCallback cb);
void generateChallenge(in int sensorId, in int userId, in int timeoutSec, in android.hardware.biometrics.fingerprint.IGenerateChallengeCallback cb);
void revokeChallenge(in int sensorId, in int userId, in long challenge, in android.hardware.biometrics.fingerprint.IRevokeChallengeCallback cb);