span> <span class="identifier">body</span><span class="special">.</span><span class="identifier">size</span><span class="special">();</span>
    <span class="special">};</span>
    <span class="identifier">p</span><span class="special">.</span><span class="identifier">on_chunk_body</span><span class="special">(</span><span class="identifier">body_cb</span><span class="special">);</span>

    <span class="keyword">while</span><span class="special">(!</span> <span class="identifier">p</span><span class="speci