"index.html#type-vertex">vertex</a>;</code></td></tr><tr id="type-transition.label" class="anchored"><td class="def field"><a href="#type-transition.label" class="anchor"></a><code>label : <span><a href="index.html#type-label">label</a> option</span>;</code></td></tr></table><code>}</code></dt><dt class="spec type" id="type-t"><a href="#type-t" class="anchor"></a><code><span class="keyword">type</span> t</code><code> = </code><code>{</code><table class="record"><tr id="type-t.name" class="anchored"><td clas