ng</span> <span class="kt">ClientRequest</span><span class="o">.</span><span class="kt">Callback</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">ClientRequest</span> <span class="p">{</span>
     <span class="k">return</span> <span class="kt">ClientRequest</span><span class="p">(</span><span class="nv">url</span><span class="p">:</span> <span class="n">url</span><span class="p">,</span> <span class="nv">callback</span><span class="p">:</span> <span class="n">callback</span><span