dd>

	<dt><code><b>superclass</b>(class)</code></dt>
	<dd>Returns all the super-classes of <code>class</code>. If <code>class</code> does not define a super-class, then it returns <code>nil</code>.</dd>

	<dt><code><b>supers</b>(class)</code></dt>
	<dd>Returns an iterator that may be used in a <code>for</code> statement to interate over all super-classes of the class <code>class</code>.</dd>
</dl>

<h3>Example</h3>

<pre>
Contained = oo.class{}
function Contained:__init(object)
  assert(object, "no object s