line" nowrap><i>eset</i></td><td valign="baseline">&nbsp;&nbsp;&nbsp;&nbsp;</td><td valign="baseline"> An <a href="ref-glossary.html#gl:ESET">ESET</a>
</td></tr><tr valign="top"><td valign="baseline" nowrap><i>item-or-nil</i></td><td valign="baseline">&nbsp;&nbsp;&nbsp;&nbsp;</td><td valign="baseline"> An object or <code>nil</code>
</td></tr><tr valign="top"><td valign="baseline" nowrap><i>present-p</i></td><td valign="baseline">&nbsp;&nbsp;&nbsp;&nbsp;</td><td valign="baseline"> A <a href="ref-glossary.htm