                    <h4>Return Value</h4>
                        <p>Rect for constrain</p>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:8CGLayout24LayoutConstraintProtocolP7convert12rectIfNeeded2toSo6CGRectVAH_AA0B7Element_ptF"></a>
                    <a name="//apple_ref/swift/Method/convert(rectIfNeeded:to:)" class="dashAnchor"