Adding a Node to a NodeSet

• Got a nodeSet that was already created and now want to add new nodes to it. Doing this when the nodeset is expanded. The code goes as follows:

topo.on('beforeExpandNodeSet', (sender, nodeSet) => { 

        var lanInfo = this._topologyClient.getLANInfo(nodeSet.model().getData().id);     //Fetch the information of the nodes 

        for (var i: number = 0; i < lanInfo.length; i++) {

          var node = topo.addNode(lanInfo[i], undefined, nodeSet);

         } 

}) 

• This doesn't seem to do it. In fact, if you go through the code of the function addNode, you may find out that it doesn't have a third parameter (parentNodeSet), even though it says it does, in the documentation.
•  How to add this newly-created nodes to the nodeset