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The plotly python chord diagram has no data attached

Hello,
I was wondering if anyone was able to find the gml file that the python plotly chord diagram tutorial used. If so, that would be very helpful, as it is difficult for me to understand the tutorial without looking at their data.
Thanks!

@SirounJ you can download the file from this link https://github.com/empet/Plotly-plots/blob/master/Data/Eurovision15.gml .