class CityChecker(object):
    def __init__(self):
        self.errors_tables = {
            "0101": {
                "name": "城市不在[3,11]个字之间",
                "parent_name": "长度异常类型",
                "parent_code": "01",
                "checkFn": self.check0101
            }
        }

    #城市不在[3,11]个字之间
    def check0101(self, city: str) -> bool:
        """
        return true  代表返回异常
        """
        if city=='':
            return True
        if 3 <= len(city) <= 11:
           return False
        return True