@SuppressWarnings("unchecked")
Optional<NormalizedNode<?, ?>> writtenValue = ((NormalizedNodeContainer) data).getChild(childId);
if (writtenValue.isPresent()) {
@SuppressWarnings("unchecked")
Optional<NormalizedNode<?, ?>> writtenValue = ((NormalizedNodeContainer) data).getChild(childId);
if (writtenValue.isPresent()) {