public static async Task <OrderWithStatus> GetOrderWithStatusById(this IPizzaApi api, int orderId)
 {
     return((await api.GetOrdersWithStatusAsync()).Single(x => x.Order.OrderId == orderId));
 }
 public static async Task <Order> GetOrderById(this IPizzaApi api, int orderId)
 {
     return((await api.GetOrdersAsync()).Single(x => x.Order.OrderId == orderId).Order);
 }