code: public FingerprintDialog callback(FingerprintDialogSecureCallback fingerprintDialogSecureCallback, String KEY_NAME){
          this.fingerprintDialogSecureCallback = fingerprintDialogSecureCallback;
          this.fingerprint.callback(fingerprintSecureCallback, KEY_NAME);
          return this;
      }
docs: Set a callback for secured authentication.
  @param fingerprintDialogSecureCallback The callback
  @param KEY_NAME An arbitrary string used to create a cipher pair in the Android KeyStore
  @return FingerprintDialog object