pecial">&gt;</span> <span class="keyword">class</span> ActorT<span class="special">,</span> 
         <span class="keyword">typename</span> SeverityCompareT<span class="special">,</span> <span class="keyword">typename</span> ChannelOrderT<span class="special">&gt;</span> 
  <span class="identifier">channel_severity_filter_actor</span><span class="special">&lt;</span> <span class="identifier">ChannelT</span><span class="special">,</span> <span class="identifier">SeverityT</span><span class="special">,</span>