an class="comment">// <a class="link" href="record.html#idm23040-bb">public member functions</a></span>
  <span class="identifier">attribute_value_set</span> <span class="special">&amp;</span> <a class="link" href="record.html#idm23041-bb"><span class="identifier">attribute_values</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  <span class="identifier">attribute_value_set</span> <span class="keyword">const</span>  <