ass="keyword">val</span> pp_id : <span><span class="xref-unresolved">Stdlib</span>.Format.formatter <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-id">id</a> <span class="arrow">&#45;&gt;</span></span> unit</span></code></div></div><div class="odoc-spec"><div class="spec module anchored" id="module-IdMap"><a href="#module-IdMap" class="anchor"></a><code><span><span class="keyword">module</span> <a href="IdMap/index.html">IdMap</a></span><span> : <a href="../../../../../IStdlib/PrettyPrinta