class ProvinceApi:
id = int
name = doc.String('name')
class RoleApi:
id = int
name = doc.String('name')
class UserApi:
id = int
name = doc.String('name')
class CityApi:
id = int
name = doc.String("name")
province_id = ProvinceApi
class OrderApi:
id = int
name = doc.String('name')