span>
  <span><a href="Shape/Type/index.html#type-attr">Shape.Type.attr</a> <a href="../../../../../../../Owl_graph/index.html#type-node">Owl_graph.node</a></span></span></code></div><div class="spec-doc"><p>make nodes and then connect parents and children</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-var_arr"><a href="#val-var_arr" class="anchor"></a><code><span><span class="keyword">val</span> var_arr : <span><span class="optlabel">?shape</span>:<span>int array</span> <spa