n class="kt">String</span><span class="p">,</span>
    <span class="n">fields</span> <span class="nv">_</span><span class="p">:</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="nv">completion</span><span class="p">:</span> <span class="kd">@escaping</span> <span class="p">(</span><span class="kt">Result</span><span class="o">&lt;</span><span class="kt">Folder</span><span class=