aseline" nowrap><i>value</i></td><td valign="baseline">&nbsp;&nbsp;&nbsp;&nbsp;</td><td valign="baseline"> An object 
</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.html#id86">generalized&nbsp;boolean</a>
</td></tr></table>
</p>
<p><span class="fndoclabel">Returns</span> <br />Two values:
</p>
<p><ul class="tight"><li>The value associated with the given <var>key</var> or <var>defau