keyword">public</span><span class="special">:</span>
    <span class="identifier">flow_regulator</span><span class="special">(</span> <span class="identifier">switcher</span> <span class="special">&amp;,</span> <span class="identifier">switcher</span> <span class="special">&amp;</span> <span class="special">);</span>
    <span class="comment">//...</span>
<span class="special">};</span>

<span class="keyword">template</span> <span class="special">&lt;</span> <span class="keyword">unsigned</span> <span class