</span><span class="keyword">class</span> <span class="identifier">ConstBufferSequence</span><span class="special">&gt;</span>
<span class="keyword">void</span>
<span class="identifier">write_some</span><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">fin</span><span class="special">,</span>
    <span class="identifier">ConstBufferSequence</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">buffers</span><span class="sp