code: def get_answers_for_student(student_item):
      
      submissions = sub_api.get_submissions(student_item)
      if not submissions:
          return Answers()
  
      latest_submission = submissions[0]
      latest_answer_item = latest_submission.get('answer', {})
      return Answers(latest_answer_item.get(ANSWER_LIST_KEY, []))
docs: Retrieve answers from backend for a student and question
  
      Args:
          student_item (dict): The location of the problem this submission is
              associated with, as defined by a course, student, and item.
  
      Returns:
          Answers: answers for the student