public static @NotNull <T extends PsiElement> ElementManipulator<T> getNotNullManipulator(@NotNull T element) {
    final ElementManipulator<T> manipulator = getManipulator(element);
    LOG.assertTrue(manipulator != null, element.getClass().getName());
    return manipulator;
  }
public static @NotNull <T extends PsiElement> ElementManipulator<T> getNotNullManipulator(@NotNull T element)