class="def variant constructor anchored"><a href="#type-type_.Union" class="anchor"></a><code><span>| </span><span><span class="constructor">Union</span> <span class="keyword">of</span> <span><a href="#type-type_">type_</a> list</span></span></code></li><li id="type-type_.UserDefined" class="def variant constructor anchored"><a href="#type-type_.UserDefined" class="anchor"></a><code><span>| </span><span><span class="constructor">UserDefined</span> <span class="keyword">of</span> string</span></code></li><li