static void ai_onNewOrRemovedWeb(O onNewWeb, O onRemovedWeb) {
  if (onNewWeb != null) {
    setAdd(postSoftwareMadeWeb_onNewWeb, onNewWeb);
    onTransientWebAdded_do(onNewWeb);
  }
  if (onRemovedWeb != null)
    onTransientWebRemoved_do(onRemovedWeb);
}