 possible types." href="../thx/Either.html">Either</a>&lt;<span class="type">L</span>, <span class="type">R</span>&gt;</span>):<span class="type">Bool</span></code></p></h3><div class="doc"><p>Indicates if the either has a Right value</p></div></div><div class="field "><a name="leftMap"></a><h3><p><code><span class="label">static</span><a href="#leftMap"><span class="identifier">leftMap</span></a>&lt;<span class="type">LIn</span>, <span class="type">LOut</span>, <span class="type">R</span>&gt; (<span style=