<span class="comment">// The backend collects statistical information about network activity of the application</span>
<span class="keyword">class</span> <span class="identifier">stat_collector</span> <span class="special">:</span>
    <span class="keyword">public</span> <span class="identifier">sinks</span><span class="special">::</span><span class="identifier">basic_sink_backend</span><span class="special">&lt;</span>
        <span class="identifier">sinks</span><span class="special">::</span><span class=