static void writeRoots(Element element, List<? extends RootDescription> rootDescriptions) {
      Element rootsElement = new Element(ROOTS_ELEMENT);
      for (LocalArchivedTemplate.RootDescription description : rootDescriptions) {
        description.write(rootsElement);
      }
      element.addContent(rootsElement);
    }
static void writeRoots(Element element, List<? extends RootDescription> rootDescriptions)