he extracted attribute value converted to the native event type. </p>
<div class="refsect2">
<a name="idm45736171843216"></a><h3>
<a name="boost.log.sinks.event_log.direct_event_type_mappingconstruct-copy-destruct"></a><code class="computeroutput">direct_event_type_mapping</code> 
        public
       construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
<pre class="literallayout"><span class="keyword">explicit</span> <a name="idm46093045544752-bb"></a