public async Task OnTurnAsync(ITurnContext turnContext, CancellationToken cancellationToken = default(CancellationToken))
        {
            switch (turnContext.Activity.Type)
            {
            case ActivityTypes.Message:
                var activity = turnContext.Activity.CreateReply();
                activity.Text                     = $"You said '{turnContext.Activity.Text}'\n";
                activity.SuggestedActions         = new SuggestedActions();
                activity.SuggestedActions.Actions = new List <CardAction>
                {
                    new CardAction()
                    {
                        Title = "Yes", Type = ActionTypes.PostBack, Value = $"yes-positive-feedback"
                    },
                    new CardAction()
                    {
                        Title = "No", Type = ActionTypes.PostBack, Value = $"no-negative-feedback"
                    }
                };

                turnContext.GoogleSetCard(
                    "This is the card title",
                    "This is the card subtitle",
                    new Image()
                {
                    AccessibilityText = "This is the accessibility text",
                    Url = "https://dev.botframework.com/Client/Images/ChatBot-BotFramework.png",
                },
                    ImageDisplayOptions.DEFAULT,
                    "This is **some text** to *go into the card*.");

                turnContext.GoogleSetAudioResponse(
                    "http://www.hochmuth.com/mp3/Haydn_Cello_Concerto_D-1.mp3",
                    "Audio Name",
                    "This is a description of the audio",
                    new Image()
                {
                    AccessibilityText = "This is the accessibility text",
                    Url = "https://dev.botframework.com/Client/Images/ChatBot-BotFramework.png",
                },
                    new Image()
                {
                    AccessibilityText = "This is the accessibility text",
                    Url = "https://dev.botframework.com/Client/Images/ChatBot-BotFramework.png",
                });

                await turnContext.SendActivityAsync(activity);

                break;
            }
        }