span> <a class="link" href="feature_of_tag_idp27088512.html" title="Struct template feature_of&lt;tag::tail_weights&lt; LeftRight &gt;&gt;">feature_of</a><span class="special">&lt;</span><span class="identifier">tag</span><span class="special">::</span><span class="identifier">tail_weights</span><span class="special">&lt;</span> <span class="identifier">LeftRight</span> <span class="special">&gt;</span><span class="special">&gt;</span> <span class="special">{</span>
  <span class="comment">// types</span>
 