def METHOD_NAME(start_date: date, end_date: date, achievement_name: str) -> None:
    '''
    解锁成就
    信用分相关成就激活判断
    :param start_date: 开始日期
    :type start_date: date
    :param end_date: 结束日期
    :type end_date: date
    :param achievement_name: 要解锁的成就名
    :type achievement_name: str
    '''
    students = get_students_without_credit_record(start_date, end_date)
    achievement = Achievement.objects.get(name=achievement_name)
    bulk_add_achievement_record(students, achievement)