Cannot Find Function "example.load" and "example.tick"

I was following a tutorial and it told me to enter a few lines of code into the tick.json and load.json files and when i was about to move on i realized there were problems and i did not know how to fix them. I'm using VS code and i am a beginner trying to code my first datapack but i need help please Heres the tutorial i was following: https://www.youtube.com/watch?v=E0BLq5Ll37c i was up to about 4:36