from typing import Dict, List, Tuple, Union, Optional, Callable, IO

gid_t = str  # garbage bag id 类型
uid_t = str  # user id 类型

uname_t = str  # user name 类型
passwd_t = str  # user password 类型
phone_t = str

count_t = int  # 计数类型 (垃圾计数)
score_t = int  # 积分类型
location_t = str
time_t = float  # 时间类型
day_t = int

enum = int  # 枚举类型