IAsyncResult IAnnouncementContract11.BeginByeOperation(ByeMessage11 message, AsyncCallback callback, object state) { return(new ByeOperation11AsyncResult(this, message, callback, state)); }
void IAnnouncementContract11.ByeOperation(ByeMessage11 message) { Fx.Assert("The [....] method IAnnouncementContract11.ByeOperation must not get invoked. It is marked with PreferAsyncInvocation flag."); }