a href="#type-hpred">hpred</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="../../IR/Exp/index.html#type-t">IR.Exp.t</a> list</span></span></code></div></div><div class="odoc-spec"><div class="spec value" id="val-atom_free_vars" class="anchored"><a href="#val-atom_free_vars" class="anchor"></a><code><span><span class="keyword">val</span> atom_free_vars : <span><a href="#type-atom">atom</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="../../IR/Ident/index.html#type-t">IR.Ident.t</