/span><span class="special">&lt;</span>
    <span class="keyword">bool</span> <span class="identifier">isRequest</span><span class="special">,</span>                         <span class="comment">// `true` to parse an HTTP request</span>
    <span class="keyword">class</span> <span class="identifier">Body</span><span class="special">,</span>                             <span class="comment">// The Body type for the resulting message</span>
    <span class="keyword">class</span> <span class="identifier">Allo