href="../../index.html">infer</a> &#x00BB; <a href="../index.html">IStdlib</a> &#x00BB; IOption</nav><header class="odoc-preamble"><h1>Module <code><span>IStdlib.IOption</span></code></h1></header><div class="odoc-content"><div class="odoc-spec"><div class="spec value anchored" id="val-find_value_exn"><a href="#val-find_value_exn" class="anchor"></a><code><span><span class="keyword">val</span> find_value_exn : <span><span><span class="type-var">'a</span> option</span> <span class="arrow">&#45;&gt;</span></s