an></pre>
<div class="block">Defines the interface, a class, which should be notified, when a tab is about to be closed by
 clicking its close button, must implement.</div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.1.0</dd>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>Michael Rapp</dd>
</dl>
</li>
</ul>
</div>
<div class="summary">
<ul class="blockList">
<li class="blockList">
<!-- ========== METHOD SUMMARY =========== -->
<ul class="blockList">
<li class="blockList"><a name