public DomainEventController(
     IMessagingService messaging,
     IExampleResultLog exampleLog)
 {
     _messaging  = messaging;
     _exampleLog = exampleLog;
 }
 public AccountHandler(IExampleResultLog log)
 {
     _log = log;
 }
 public MailingHandler(IExampleResultLog log)
 {
     _log = log;
 }