One node of a drawn sankey, as its calcdata holds it.
pointNumber is the node's index in the trace's own node.label array; label is the name plotly resolved for it.
pointNumber
node.label
label
Optional
One node of a drawn sankey, as its calcdata holds it.
pointNumberis the node's index in the trace's ownnode.labelarray;labelis the name plotly resolved for it.