public static Task <bool> SignOutUserAsync(this IDialogContext context, string connectionName)
 {
     return(ConnectorClientOAuthExtensions.SignOutUserAsync(null, context.Activity, connectionName));
 }
 public static Task <TokenResponse> GetUserTokenAsync(this IDialogContext context, string connectionName, string magicCode)
 {
     return(ConnectorClientOAuthExtensions.GetUserTokenAsync(null, context.Activity, connectionName, magicCode));
 }