td class="mdescLeft">&#160;</td><td class="mdescRight">Returns an iterator to the first entity of the group.  <br /></td></tr>
<tr class="separator:a3fd2db6528ee4a5e14f96dd6b0f38769"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a99c4a0d307973232a293a83e85d578f5" id="r_a99c4a0d307973232a293a83e85d578f5"><td class="memItemLeft" align="right" valign="top"><a class="el" href="#a611925e5ae41497d06519a40aaabdc64">iterator</a>&#160;</td><td class="memItemRight" valign="bottom"><a class=