How to implement face Recognition in android and where is the source code of face Recognisation

[natiginfo]

Hi, according to documentation: On devices running P and above, this will show a system-provided authentication prompt, using a device’s supported biometric (fingerprint, iris, face, etc). So, I'm not sure if there's any device which has implemented BiometricPrompt for face recognition. If there is, you can use same code and it should automatically use facial recognition.