Exercise

Modifying variables outside local scope

Sometimes your functions will need to modify a variable that is outside of the local scope of that function. While it's generally not best practice to do so, it's still good to know-how in case you need to do it. Update these functions so they can modify variables that would usually be outside of their scope.

Instructions 1/3

XP

1
Add a keyword that lets us update call_count from inside the function.
2
Add a keyword that lets us modify file_contents from inside save_contents().
3
Add a keyword to done in check_is_done() so that wait_until_done() eventually stops looping.