How I skip FirstStep and DoneStep in liveness method[BR]

[hafeezrana]

 var firstStep = Regula.LivenessSkipStep.START_STEP;
  var lastStep = Regula.LivenessSkipStep.DONE_STEP;

  liveness() => Regula.FaceSDK.startLiveness().then(
        (value) {
          var result = Regula.LivenessResponse.fromJson(json.decode(value));
          setImage(
            true,
            base64Decode(result!.bitmap!.replaceAll("\n", "")),
            Regula.ImageType.LIVE,
          );
          setState(() {
            _liveness = result.liveness == Regula.LivenessStatus.PASSED
                ? "passed"
                : "unknown";
          });
        },
      );