when I use python3 annotation
class UserBean(SerializationBean):
# serial_field = {"account", "nick_name"}
non_serial_field = {"password"}
def __init__(self, account: str = None, password: str = None, nick_name: str = None, roommate: UserBean = None):
super().__init__()
self._account = account
self._password = password
self._nick_name = nick_name
self._roommate = roommate
The roommate's annotation will raise NameError: name 'UserBean' is not defined How to resolve it?
