e.childNodes;if(n&&t){for(let o=n.length-1;o>=0;--o){const r=$(n[o],!0);r.__removalCount=(e.__removalCount||0)+1,t.insertBefore(r,re(e))}}}return At(e),!0}return e instanceof w&&!function(e){let t=ae(e);t&&t.tagName||(t={namespaceURI:rt,tagName:"template"});const n=h(e.tagName),o=h(t.tagName);return!!at[e.namespaceURI]&&(e.namespaceURI===nt?t.namespaceURI===ot?"svg"===n:t.namespaceURI===tt?"svg"===n&&("annotation-xml"===o||ct[o]):Boolean(yt[n]):e.namespaceURI===tt?t.namespaceURI===ot?"math"===n:...

        List<Element> inSection = new ArrayList<>();
        inSection.add(heading);

        Element next = heading.nextElementSibling();
        while (true) {
            if (next == null || next.tagName().equals("h2")) {
                Element section = heading.before("<section class='topic'/>").previousElementSibling();
                Elements inSectionElements = new Elements(inSection);