ifier">size_t</span>
<span class="identifier">write_some</span><span class="special">(</span>
    <span class="identifier">SyncWriteStream</span><span class="special">&amp;</span> <span class="identifier">stream</span><span class="special">,</span>
    <span class="identifier">serializer</span><span class="special">&lt;</span> <span class="identifier">isRequest</span><span class="special">,</span> <span class="identifier">Body</span><span class="special">,</span> <span class="identifier">Fields</span> <span