>public</span> <span class="identifier">attribute</span> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
  <span class="comment">// types</span>
  <span class="keyword">typedef</span> <span class="identifier">TimeTraitsT</span><span class="special">::</span><span class="identifier">time_type</span> <a name="boost.log.attributes.basic_clock.value_type"></a><span class="identifier">value_type</span><span class="special">;</span>  <span class="comment">// Genera