0;<B>oo::objdefine </B><I>cls subcommand ...</I>&#8221;.
<P><DT><A NAME="M17"><B>superclass</B> ?<I>-slotOperation</I>? ?<I>className ...</I>?</A><DD>
This slot (see <B><A HREF="define.html#M31">SLOTTED DEFINITIONS</A></B> below)
allows the alteration of the superclasses of the class being defined.
Each <I>className</I> argument names one class that is to be a superclass of
the defined class. Note that objects must not be changed from being classes to
being non-classes or vice-versa, that an empty parent cl