Scale marks in Chord diagram

Hi ,

I would like to add scale marks for each node in a chord diagram like in this example:

This is the code I used:
chord = hv.Chord((links, nodes)).select(value=(2, None)).opts(
opts.Chord(cmap=‘Category20b’, edge_color=dim(‘source’).astype(str), labels=‘name’,
node_color=dim(‘index’).astype(str), width=500, height=500, node_size=30,
edge_alpha=0.8, edge_cmap=‘Category20b’)

Is it possible to do it?

Thank you,