ref="#type-state">state</a> <span class="arrow">&#45;&gt;</span></span> <span>string <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-state">state</a> <a href="../index.html#type-res">res</a></span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-construct"><a href="#val-construct" class="anchor"></a><code><span><span class="keyword">val</span> construct : <span><a href="../index.html#type-trans_f">trans_f</a> <span class="arrow">&#45;&gt;</span></spa