ass="type">A</span>&gt; (<span style="white-space:nowrap">either:<a class="type" title="Either wraps one value of two possible types." href="../thx/Either.html">Either</a>&lt;<span class="type">L</span>, <span class="type">R</span>&gt;,</span> <span style="white-space:nowrap">f:<span class="type">R</span>&nbsp;&#8209;&gt;&nbsp;<span class="type">A</span>,</span> <span style="white-space:nowrap">m:<a class="type" title="" href="../thx/Monoid.html">Monoid</a>&lt;<span class="type">A</span>&gt;</span>):<span c