Comet Chart

Hello:

I tried following along with the following tutorial

https://community.powerbi.com/t5/Data-Stories-Gallery/2022-Week-35-Power-BI-Make-a-Comet-Chart/m-p/2738859#M8235

Unfortunately, I was not able to recreate a simple comet chart for a small dataset (4000 in 2010, 6500 in 2012).  Just two datapoints I wanted to convert into a comet chart for some visual relief on an infographic.  I was not able to locate the json script that the instructor copied and pasted into Deben.  Any guidance would be much appreciated.  Thanks in advance.