protected static @NotNull Pair<Element, String> createItem(@NotNull String fileName, @NotNull UniqueNameGenerator generator, @NotNull Element element) {
    return Pair.create(element, generator.generateUniqueName(FileUtil.sanitizeFileName(fileName)) + ".xml");
  }
protected static @NotNull Pair<Element, String> createItem(@NotNull String fileName, @NotNull UniqueNameGenerator generator, @NotNull Element element)