INode added = node.addNode(((HopObject) child).node);
node.addNode(((HopObject) child).node);
    public boolean jsFunction_add(Object child) {        if ((node == null) || (child == null)) {            return false;        }        if (child instanceof HopObject) {            INode added = node.addNode(((HopObject) child).node);            return true;        } else if (child instanceof INode) {            INode added = node.addNode((INode) child);            return true;        }        return false;    }