 <div class="task-name-container">
                <a name="/PolyCache"></a>
                <a name="//apple_ref/swift/Section/PolyCache" class="dashAnchor"></a>
                <a href="#/PolyCache">
                  <h3 class="section-name">PolyCache</h3>
                </a>
              </div>
              <ul>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:4Poly0A5CacheC3get11dataWithKey17completionHandlerySS_y10Foundation4DataVS