></span> array</span> <span class="arrow">&#45;&gt;</span></span>
  <span><span class="label">output</span>:<span><span><a href="Optimiser/Operator/Symbol/Shape/Type/index.html#type-attr">Optimiser.Operator.Symbol.Shape.Type.attr</a> <a href="../../../Owl_graph/index.html#type-node">Owl_graph.node</a></span> array</span> <span class="arrow">&#45;&gt;</span></span>
  <span>string <span class="arrow">&#45;&gt;</span></span>
  <a href="#type-graph">graph</a></span></code></div></div><div class="odoc-spec"><div