nge process.  If <var>new-class</var> is a <a href="ref-glossary.html#id254">unit&nbsp;class</a>, an
<nobr><code>instance-changed-class-event</code></nobr> is signaled when the class change has been
completed.
</p>
<p>The following events may also be signaled:
</p>
<p><ul class="tight"><li><code>unlink-event</code>
<li><code>instance-removed-from-space-instance-event</code>
<li><code>link-event</code>
<li><code>nonlink-slot-updated-event</code>
<li><code>instance-added-to-space-instance-event</code>
</ul>
<