/span></span> <span class="type-var">'a</span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-iteri"><a href="#val-iteri" class="anchor"></a><code><span><span class="keyword">val</span> iteri : <span><span><span class="type-var">'a</span> <a href="#type-t">t</a></span> <span class="arrow">&#45;&gt;</span></span> <span><span class="label">f</span>:<span>(<span><span class="label">key</span>:<a href="#type-key">key</a> <span class="arrow">&#45;&gt;</span></span> <span