private async Task HandleDebugWelcomeTeam(ConnectorClient connectorClient, Activity activity, string teamId)
{
var welcomeCard = WelcomeTeamAdaptiveCard.GetCardJson("TestTeam", teamId, activity.Recipient.Id, "Rocky");
var replyActivity = activity.CreateReply();
replyActivity.Attachments = new List <Attachment> {
AdaptiveCardHelper.CreateAdaptiveCardAttachment(welcomeCard)
};
await connectorClient.Conversations.ReplyToActivityAsync(replyActivity);
}