def METHOD_NAME(self):
    """
    Lazily queries and returns the scores stored by the
    Submissions API for the course, while caching the result.
    """
    anonymous_user_id = anonymous_id_for_user(self.student, self.course_data.course_key)
    return submissions_api.get_scores(str(self.course_data.course_key), anonymous_user_id)