@Override
  public boolean isInvalidElement(final Object element) {
    if (element instanceof ResourceBundle resourceBundle) {
      List<PropertiesFile> propertiesFiles = resourceBundle.getPropertiesFiles();
      if (propertiesFiles.size() == 1) {
        //todo result.add(new PsiFileNode(myProject, propertiesFiles.iterator().next(), this));
        return true;
      }
    }
    return false;
  }
@Override
  public boolean isInvalidElement(final Object element)