o query.
                </p>
              </td>
</tr></tbody>
</table></div>
<h5>
<a name="fusion.support.is_sequence.h3"></a>
        <span class="phrase"><a name="fusion.support.is_sequence.expression_semantics"></a></span><a class="link" href="is_sequence.html#fusion.support.is_sequence.expression_semantics">Expression
        Semantics</a>
      </h5>
<pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">traits</span><span class="special">::</span><span class="ident