<code><span class="keyword">type</span> <span>!'a t</span></code><code> = <span><span>(<a href="../../argument-1-Type/index.html#type-t">Type.t</a>, <span class="type-var">'a</span>)</span> <a href="../../../index.html#type-state">state</a></span></code></dt></dl><dl><dt class="spec value" id="val-map"><a href="#val-map" class="anchor"></a><code><span class="keyword">val</span> map : <span>(<span class="type-var">'a</span> <span>&#45;&gt;</span> <span class="type-var">'b</span>)</span> <span>&#45;&gt;</spa