ass="type-var">'stdout</span>, <a href="#type-pipe">pipe</a>)</span> <a href="#type-t">t</a></span> <span class="arrow">&#45;&gt;</span></span> <span class="xref-unresolved">Stdlib</span>.in_channel</span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-wait"><a href="#val-wait" class="anchor"></a><code><span><span class="keyword">val</span> wait : 
  <span><span class="optlabel">?mode</span>:<span><span class="xref-unresolved">Unix</span>.wait_flag list</span> <span class=