s <code>t</code>)
</td></tr><tr valign="top"><td valign="baseline" nowrap><i>slot-names <span 
    style="font-family: serif; font-style: normal">or</span> slot-name <td valign="baseline">&nbsp;&nbsp;&nbsp;&nbsp;</td><td valign="baseline"> A slot-name or list of slot-names
(default is <code>t</code>)
</td></tr><tr valign="top"><td valign="baseline" nowrap><i>paths <span 
    style="font-family: serif; font-style: normal">or</span> path <td valign="baseline">&nbsp;&nbsp;&nbsp;&nbsp;</td><td valign="baseline"