s="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">func</span> <span class="nf">af_setImage</span><span class="p">(</span><span class="n">withURLRequest</span> <span class="nv">urlRequest</span><span class="p">:</span> <span class="kt">URLRequestConvertible</span><span class="p">,</span>
                        <span class="nv">cacheKey</span><span class="p">:</span> <span class="kt">String</span><span class="p">?</span> <sp