<span class="kt">Error</span><span class="p">?)</span> <span class="o">-&gt;</span> <span class="p">())?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">,</span>
                         <span class="n">success</span> <span class="nv">succeed</span><span class="p">:</span> <span class="kd">@escaping</span> <span class="p">(</span><span class="kt">Data</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="p">())</span></code></pre>

                        </div>