span>(<span class="type-var">'a</span> <span>&#45;&gt;</span> <span class="type-var">'b</span>)</span> <span>&#45;&gt;</span> <span><span class="type-var">'b</span> <a href="index.html#type-t">t</a></span></code></dt><dd><p>Mapped version of <code>|&gt;</code> (which is flipped <code>(&lt;&amp;&gt;)</code>)</p></dd></dl></details></div></div></div><dl><dt class="spec value" id="val-return"><a href="#val-return" class="anchor"></a><code><span class="keyword">val</span> return : <span class="type-var">'a</spa