            <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">typealias</span> <span class="kt">ProgressHandler</span> <span class="o">=</span> <span class="p">(</span><span class="n">_</span> <span class="nv">progress</span><span class="p">:</span> <span class="kt">Float</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Void</span></code></pre>

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