private void wrapContentInContainer(Document document) {
        // Wrap the page in a text container to get the margins
        Elements bodyContent = document.body().children().remove();
        document.body().prepend("<div class='container'/>");
        document.body().children().get(0).html(bodyContent.outerHtml());
    }

    private void addTOC(Document document) {

    }

    private static List<String> visitCycle(
            Map<String, Set<String>> graph,
            Collection<String> children,
            Map<String, DfsState> stateMap,
            LinkedList<String> cycle) {
        if (children != null) {
            for (String v : children) {
                DfsState state = stateMap.putIfAbsent(v, DfsState.VISITING);
                if (state == null) {

                false // error?
            // no children of secondary constructs are used.
            is KtSecondaryConstructor ->
                false

            // KtClass, KtObjectDeclaration, KtTypeAlias has no expression children
            is KtClassLikeDeclaration ->
                false // has no expression children

            // Simple names do not have expression children

                .collect(Collectors.toList());
        return new XmlNodeImpl("configuration", null, null, children, null);
    }

    public static org.codehaus.plexus.util.xml.Xpp3Dom convert(MojoDescriptor mojoDescriptor) {
        PlexusConfiguration c = mojoDescriptor.getMojoConfiguration();

        List<XmlNode> children = new ArrayList<>();
        PlexusConfiguration[] ces = c.getChildren();
        if (ces != null) {

		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "ch":
			err = z.Children.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "Children")
				return
			}
		case "sz":
			z.Size, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "Size")
				return
			}
		case "os":

  // at most two children for the prefix to detect if a directory is empty.
  auto gcs_file = static_cast<GCSFile*>(filesystem->plugin_filesystem);
  auto childrens = GetChildrenBounded(gcs_file, path, 2, true, true, status);
  if (TF_GetCode(status) != TF_OK) return;
  if (childrens.size() > 1 || (childrens.size() == 1 && !childrens[0].empty()))
    return TF_SetStatus(status, TF_FAILED_PRECONDITION,

        return visitor.leave(this);
    }

    @Override
    public Node filter(Predicate<Node> filter) {
        List<Node> children =
                getChildren().stream().filter(filter).map(n -> n.filter(filter)).collect(Collectors.toList());
        return new WrapperNode(this, Collections.unmodifiableList(children));
    }

    @Override
    public String asString() {
        StringBuilder sb = new StringBuilder();

     * Starts the visit to the specified dependency node.
     *
     * @param node the dependency node to visit
     * @return <code>true</code> to visit the specified dependency node's children, <code>false</code> to skip the
     *         specified dependency node's children and proceed to its next sibling
     */
    boolean enter(@Nonnull Node node);

    /**
     * Ends the visit to the specified dependency node.
     *

        if (node.getValue() != null) {
            return node.getValue();
        } else {
            List<Object> children = new ArrayList<>();
            for (XmlNode child : node.getChildren()) {
                children.add(getValue(child));
            }
            return children;
        }
    }

    @Override
    public Object getBaseValue() {
        return node;
    }

    @Override

            List<XmlNode> children = new ArrayList<>();
            for (PlexusConfiguration c : config.getChildren()) {
                children.add(toXml(c, evaluator));
            }
            String name = config.getName();
            Object value = evaluator.evaluate(config.getValue());
            return new XmlNodeImpl(name, value != null ? value.toString() : null, null, children, null);
        }
    }