write in python. must use while loop

Question 3: Filter grades Filename: filter_grades.py Write a function called filter_grades that receive a list of grades that are stored as integer values and a passing grade.. This function should return a new list containing all of the grades in the original list that are not passing (strictly lower than the passing grade). Write a main function in your file to exercise your function to show that it works correctly. Your test implementation should not rely on visual inspection to determine if the tests pass