ass="nf">parameters</span><span class="p">(</span><span class="n">_</span> <span class="nv">parameters</span><span class="p">:</span> <span class="p">[</span><span class="kt">String</span> <span class="p">:</span> <span class="kt">Any</span><span class="p">],</span> <span class="nv">rootKey</span><span class="p">:</span> <span class="kt">String</span><span class="p">?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="k">Self</span><