iv class="qm-html-paragraph">An array that takes the following form: </div><div class="qm-html-paragraph"><div class="qm-code-highlight-codeblock language-js"><pre><code class="qm-code-font"></code></pre></div> </div><div class="qm-html-paragraph">The data object should be an array of objects that represent the first level of nodes in the tree. Each of these nodes can contain children - they can have a &#39;children&#39; field which refers to an array of the child nodes. A node can also contain other proper