lass="anchor" aria-label="anchor" href="#returns"></a></h4>
<p>Invisible <code>TRUE</code>.</p>
</div>

</div><p></p><hr><a id="method-Constraint-clone"></a><div class="section">
<h3 id="method-clone-">Method <code>clone()</code><a class="anchor" aria-label="anchor" href="#method-clone-"></a></h3>
<p>The objects of this class are cloneable with this method.</p><div class="section">
<h4 id="usage-1">Usage<a class="anchor" aria-label="anchor" href="#usage-1"></a></h4>
<p></p><div class="r"><div class="sourceC