protected override bool Equals(AbstractStringCallbackInvoke obj) { return(obj is LibraryCallbackInvoke && Equals((LibraryCallbackInvoke)obj)); }
protected override bool Equals(AbstractStringCallbackInvoke obj) { return(obj is WebServiceCallbackInvoke && Equals((WebServiceCallbackInvoke)obj)); }
protected abstract bool Equals(AbstractStringCallbackInvoke obj);