urns</span><table cellpadding="0" cellspacing="0" border="0"><tr><td width="20"></td><td><code>int</code> &mdash; An <code>int</code> indicating the first null slot in the group.
		 </td></tr></table></div><a name="getRandom()"></a><a name="getRandom(uint,uint)"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">getRandom</td><td class="detailHeaderParens">()</td><td class="detailHeaderType">method</td><td class="detailHeaderRule">&nbsp;</td></tr></table><div cl