nnel_logger">basic_channel_logger</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <a class="link" href="basic_channel_logger.html#idm30234-bb"><span class="identifier">basic_channel_logger</span></a><span class="special">(</span><a class="link" href="basic_channel_logger.html" title="Class template basic_channel_logger">basic_channel_logger</a> <span class="special">&amp;&amp;</span><span class="special">)</span> <span c