tml#type-t">t</a> <span>&#45;&gt;</span> <a href="../../../../IR/Procdesc/index.html#type-t">IR.Procdesc.t</a></code></dt><dt class="spec value" id="val-fold_nodes"><a href="#val-fold_nodes" class="anchor"></a><code><span class="keyword">val</span> fold_nodes : <span><span>(<a href="index.html#type-t">t</a>, <a href="Node/index.html#type-t">Node.t</a>, <span class="type-var">'accum</span>)</span> <a href="../../../../IStdlib/index.html#module-IStd">IStdlib.IStd</a>.Container.fold</span></code></dt><dt cla