>&amp;</span> channel_name<span class="special">,</span> 
                          <span class="identifier">attribute_name</span> <span class="keyword">const</span> <span class="special">&amp;</span> severity_name<span class="special">,</span> 
                          <span class="identifier">SeverityCompareT</span> <span class="keyword">const</span> <span class="special">&amp;</span> severity_compare<span class="special">)</span><span class="special">;</span>
<span class="keyword">template</span><span c