<span class="keyword">val</span> compare : <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> int</code></dt></dl></div></div></div><dl><dt class="spec type" id="type-id"><a href="#type-id" class="anchor"></a><code><span class="keyword">type</span> id</code><code> = <span class="keyword">private</span> int</code></dt><dd><p>node id</p></dd></dl><div><div class="spec include"><div class="doc"><dl><dt class="spec value" id="val-compare_id"><a href