le"><h1>Module <code><span>Node.IdSet</span></code></h1></header><div class="odoc-content"><div class="odoc-spec"><div class="spec type anchored" id="type-elt"><a href="#type-elt" class="anchor"></a><code><span><span class="keyword">type</span> elt</span><span> = <a href="../index.html#type-id">id</a></span></code></div></div><div class="odoc-spec"><div class="spec type anchored" id="type-t"><a href="#type-t" class="anchor"></a><code><span><span class="keyword">type</span> t</span><span> = <a href="../../..