/span>

<span class="comment">// Set up the serializer</span>
<span class="identifier">response_serializer</span><span class="special">&lt;</span><span class="identifier">empty_body</span><span class="special">&gt;</span> <span class="identifier">sr</span><span class="special">{</span><span class="identifier">res</span><span class="special">};</span>

<span class="comment">// Write the header first</span>
<span class="identifier">write_header</span><span class="special">(</span><span class="identifier">sock