dule-Set" class="anchor"></a><code><span class="keyword">module</span> Set : <a href="../IStdlib/index.html#module-IStd">IStdlib.IStd</a>.Caml.Set.S <span class="keyword">with</span> <span class="keyword">type</span> <a href="index.html#module-Set">Set</a>.elt = <a href="index.html#type-t">t</a></code></dt><dd><p>Set for identifiers.</p></dd></dl><dl><dt class="spec module" id="module-Hash"><a href="#module-Hash" class="anchor"></a><code><span class="keyword">module</span> Hash : <a href="../IStdlib/index.h