IAsyncResult IAnnouncementContractCD1.BeginByeOperation(ByeMessageCD1 message, AsyncCallback callback, object state)
 {
     return(new ByeOperationCD1AsyncResult(this, message, callback, state));
 }
 void IAnnouncementContractCD1.ByeOperation(ByeMessageCD1 message)
 {
     Fx.Assert("The [....] method IAnnouncementContractCD1.ByeOperation must not get invoked. It is marked with PreferAsyncInvocation flag.");
 }