n><span class="p">:(</span><span class="n">UInt32</span><span class="p">)</span><span class="nv">offset</span>
                                  <span class="nf">length</span><span class="p">:(</span><span class="n">UInt32</span><span class="p">)</span><span class="nv">length</span><span class="p">;</span></code></pre>

  
  <h4>Swift</h4>
  <pre class="highlight swift"><code><span class="nf">init</span><span class="p">(</span><span class="nv">fileName</span><span class="p">:</span> <span class="kt">String<