y&lt; LevelT &gt;, channel&lt; ChannelT &gt; &gt; &gt;
<span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
  <span class="comment">// <a class="link" href="severity_channel_logger_mt.html#boost.log.sources.severity_channel_logger_mtconstruct-copy-destruct">construct/copy/destruct</a></span>
  <a class="link" href="severity_channel_logger_mt.html#idm31104-bb"><span class="identifier">severity_channel_logger_mt</span></a><span class="special">(</span><span class="s