public void OnVolkswagen(ExampleDirectEvent directEvt)
        {
            Console.WriteLine("Handler: OnVolkswagen");
            Console.WriteLine(directEvt.ToIndentedJson());

            directEvt.SetAcknowledged();
        }
        public void OnGeneralMotors(ExampleDirectEvent directEvt)
        {
            Console.WriteLine("Handler: OnGeneralMotors");
            Console.WriteLine(directEvt.ToIndentedJson());

            directEvt.SetAcknowledged();
        }