/p></div><h3 class="section">Methods</h3><div class="fields"><div class="field "><a name="clear"></a><h3 class="anchor"><code><a href="#clear"><span class="identifier">clear</span></a>():<a class="type" title="Void - The standard Void type." href="../Void.html">Void</a></code></h3><div class="doc"><p></p></div></div><div class="field "><a name="exists"></a><h3 class="anchor"><code><a href="#exists"><span class="identifier">exists</span></a>(<span style="white-space:nowrap">k:<span class="type">K</span></spa