Adding metadata to node in noflo embedding nodejs

[mohandass-pat]

Hi. I need to add metadata while adding the node that. For example

const graph = new noflo.Graph('My graph');
graph.addNode("Square", "square")
while doing this I need to add some data also.
like this -> graph.addNode("Square", "square", {metadata: "metadata"}) as referred here https://github.com/flowbased/fbp-graph/blob/master/src/Graph.coffee#L149

If I do like this how to get the metadata in component. Input not not providing these data.

Please help me on this. Thanks in advance