s="fssnip highlighted"><code lang="fsharp"><span class="k">let</span> <span onmouseout="hideTip(event, 'fs19', 26)" onmouseover="showTip(event, 'fs19', 26)" class="fn">work</span> <span class="pn">(</span><span class="pn">)</span> <span class="pn">:</span> <span onmouseout="hideTip(event, 'fs14', 27)" onmouseover="showTip(event, 'fs14', 27)" class="vt">Effect</span><span class="pn">&lt;</span><span class="pn">#</span><span onmouseout="hideTip(event, 'fs11', 28)" onmouseover="showTip(event, 'fs11', 28)" clas