"odoc-spec"><div class="spec value anchored" id="val-(let&amp;)"><a href="#val-(let&amp;)" class="anchor"></a><code><span><span class="keyword">val</span> (let&amp;) : 
  <span><span><span>(<span class="type-var">'stdin</span>, <span class="type-var">'stderr</span>, <span class="type-var">'stdout</span>)</span> <a href="../Core/Cmd/index.html#type-t">Cmd.t</a></span> <span class="arrow">&#45;&gt;</span></span>
  <span><span>(<span><span><span>(<span class="type-var">'stdin</span>, <span class="type-var">'st