@Override
  default boolean isShowSubmenu() {
    IntentionAction action = IntentionActionDelegate.unwrap(getDelegate());
    if (action instanceof CustomizableIntentionAction) {
      return ((CustomizableIntentionAction)action).isShowSubmenu();
    }
    return CustomizableIntentionAction.super.isShowSubmenu();
  }
@Override
  default boolean isShowSubmenu()