return null;
        }

        @Override
        public Node appendChild(Node newChild) {
            return null;
        }

        @Override
        public boolean hasChildNodes() {
            return false;
        }

        @Override
        public Node cloneNode(boolean deep) {
            return null;
        }

        @Override
        public void normalize() {

e.setAttribute||"string"!=typeof e.namespaceURI||"function"!=typeof e.insertBefore||"function"!=typeof e.hasChildNodes)},Dt=function(e){return"function"==typeof D&&e instanceof D};function Rt(e,t,n){u(e,(e=>{e.call(o,t,n,dt)}))}const wt=function(e){let t=null;if(Rt(de.beforeSanitizeElements,e,null),Nt(e))return At(e),!0;const n=ft(e.nodeName);if(Rt(de.uponSanitizeElement,e,{tagName:n,allowedTags:Ne}),ze&&e.hasChildNodes()&&!Dt(e.firstElementChild)&&b(/<[/\w!]/g,e.innerHTML)&&b(/<[/\w!]/g,e.textContent))return...

     *
     * @param node the node to parse
     * @param buf the StringBuilder to append content to
     */
    protected void parseTextContent(final Node node, final StringBuilder buf) {
        if (node.hasChildNodes()) {
            final NodeList nodeList = node.getChildNodes();
            for (int i = 0; i < nodeList.getLength(); i++) {
                final Node childNode = nodeList.item(i);