est</code> 
and returns an <code>error</code>. A special error in the <code>items</code> package, <code>ErrAllowHiddenItem</code> 
can be returned as the error from Hide to instruct handlers to show hidden 
content in specific cases.</p>
<h5 id="method-set_1">Method Set<a class="headerlink" href="#method-set_1" title="Permanent link">&para;</a></h5>
<div class="codehilite"><pre><span></span><span class="kd">type</span> <span class="nx">Hideable</span> <span class="kd">interface</span> <span class="p">{</spa