n class="keyword">val</span> iter : <span>(<a href="index.html#type-elt">elt</a> <span>&#45;&gt;</span> unit)</span> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> unit</code></dt><dt class="spec value" id="val-map"><a href="#val-map" class="anchor"></a><code><span class="keyword">val</span> map : <span>(<a href="index.html#type-elt">elt</a> <span>&#45;&gt;</span> <a href="index.html#type-elt">elt</a>)</span> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a> <span>&#4