span class="kt">UIViewController</span><span class="p">?,</span> <span class="nv">completion</span><span class="p">:</span> <span class="p">(()</span> <span class="o">-&gt;</span> <span class="kt">Void</span><span class="p">)?)</span> <span class="o">-&gt;</span> <span class="kt">Bool</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
              </ul>
            </div>
          </section>
       