oller</span><span class="p">,</span> <span class="nv">source</span><span class="p">:</span> <span class="kt">UIViewController</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">UIViewControllerAnimatedTransitioning</span><span class="p">?</span></code></pre>

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