I actually tested a bunch of those on GH Copilot -- sure enough, it does autocomplete certain prompts. No wonder, some are probably known quotes. Anyway, when I'm feeling down in my VSCode environment, I enter some random prompts in search of a pun. Most of the time it's just random rambling but hey:
# (prompt: my dog ...) seems to be interested in the plot.
# (prompt: my dog ...) seems to be interested in the plot.
# I wonder what the dog is thinking about.
# Probably about the food.
# I should feed him.
under some code where I was plotting a forecast.