public async Task SendCard(ICard card)
{
var message = _context.MakeMessage();
var connector = new ConnectorClient(new Uri(message.ServiceUrl));
var replyToConversation = (Activity)_context.MakeMessage();
replyToConversation.Attachments = card.Draw();
string cardType = card.GetType().Name;
if (cardType == "CarouselListCard")
{
replyToConversation.AttachmentLayout = AttachmentLayoutTypes.Carousel;
}
await connector.Conversations.SendToConversationAsync(replyToConversation);
}