="anchor"></a><code><span class="keyword">module</span> IdMap : <a href="../../../../../IStdlib/PrettyPrintable/index.html#module-type-PPMap">IStdlib.PrettyPrintable.PPMap</a> <span class="keyword">with</span> <span class="keyword">type</span> <a href="../../../../../IStdlib/PrettyPrintable/index.html#module-type-PPMap">PPMap</a>.key = <a href="index.html#type-id">id</a></code></div><div class="spec module" id="module-IdSet"><a href="#module-IdSet" class="anchor"></a><code><span class="keyword">module</span