IR.Typ.t</a> <span>&#45;&gt;</span> <span><a href="../../IR/Typ/index.html#type-t">IR.Typ.t</a> option</span> <span>&#45;&gt;</span> <a href="../../IBase/Location/index.html#type-t">IBase.Location.t</a> <span>&#45;&gt;</span> unit</code></dt><dt class="spec type" id="type-find_canonical_duplicate"><a href="#type-find_canonical_duplicate" class="anchor"></a><code><span class="keyword">type</span> find_canonical_duplicate</code><code> = <a href="../../IR/Procdesc/Node/index.html#type-t">IR.Procdesc.Node.t</a>