n class="nf">containsFile</span><span class="p">:(</span><span class="n">nonnull</span> <span class="n">NSString</span> <span class="o">*</span><span class="p">)</span><span class="nv">fileName</span><span class="p">;</span></code></pre>

  
  <h4>Swift</h4>
  <pre class="highlight swift"><code><span class="kd">func</span> <span class="nf">containsFile</span><span class="p">(</span><span class="n">_</span> <span class="nv">fileName</span><span class="p">:</span> <span class="kt">String</span><span class="p"