code: public Fingerprint callback(FingerprintSecureCallback fingerprintSecureCallback, String KEY_NAME){
          this.fingerprintSecureCallback = fingerprintSecureCallback;
          this.cipherHelper = new CipherHelper(KEY_NAME);
          return this;
      }
docs: Set fingerprint secure callback.
  @param fingerprintSecureCallback secure callback
  @param KEY_NAME key that will be used for the cipher
  @return the Fingerprint object itself