val</span> display : <span><a href="class-type-props/index.html">props</a> <a href="../../ezjs-utils/Ocp_js/index.html#module-Js">Ocp_js.Js</a>.t</span> <span>&#45;&gt;</span> <span><a href="class-type-cytoscape/index.html">cytoscape</a> <a href="../../ezjs-utils/Ocp_js/index.html#module-Js">Ocp_js.Js</a>.t</span></code></dt><dt class="spec value" id="val-add_node"><a href="#val-add_node" class="anchor"></a><code><span class="keyword">val</span> add_node : <span>&lt; add : <span><a href="DataItem/class-type