At this point, you've got three well-documented functions with helpful code comments and good code style intime_management.py. Now it's time to focus on our code tests!

Q4: test function:test_calculate_stats(1.5 pts)

test_calculate_stats()has been provided for you. Describe in the cell containingReplace this with your explanationwhat exactly this test function is accomplishing/testing. (This will likely include an explanation of each line of code.)