 entity.  <br /></td></tr>
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<tr class="memitem:a9c8624960249235714926777c1b4423e" id="r_a9c8624960249235714926777c1b4423e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="#abb8a3829dcd9e0699bb39e52ba42c9c1">entity_type</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a9c8624960249235714926777c1b4423e">operator[]</a> (const <a class="el" href="#a4e3417