@Override
    public final Stream<? extends DocumentProperty> children() {
        return MapStream.of(children)
            .sortedByKey(Comparator.naturalOrder())
            .flatMapValue(ObservableList::stream)
            .values();
    }
{@inheritDoc}
@deprecated Not supported for observables
tool-parent/tool-config/src/main/java/com/speedment/tool/config/AbstractDocumentProperty.java