public async Task <string> Handle(LuisResult param)
        {
            var cameraDriver  = new CameraDriver();
            var capturedPhoto = await cameraDriver.TakeShot();

            var storageFile = await cameraDriver.Save(capturedPhoto, ApplicationData.Current.TemporaryFolder);

            var imageAnalyzer = new ImageAnalyzer(AppConfiguration.VisionApiSubscriptionKey, AppConfiguration.VisionApiEndPoint);
            var imageAnalysis = await imageAnalyzer.Describe(storageFile);

            var description = GetDescription(imageAnalysis);

            return(description);
        }