">::</span><span class="identifier">size_t</span>
<a class="link" href="boost__beast__http__write_header/overload1.html" title="http::write_header (1 of 2 overloads)">write_header</a><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">