What version of Python does this API need to run on?

[huazaizhang]

What version of Python does this API need to run on? I tried running it on a Python 3.8 environment and it threw an error.
@zeroday0619

File "/Users/zhangweihua/work/workspace/python3workspace/Nintendo_Switch_Online_API_Bridge/nso_bridge/__init__.py", line 3, in <module> from nso_bridge.nsa import NintendoSwitchAccount File "/Users/zhangweihua/work/workspace/python3workspace/Nintendo_Switch_Online_API_Bridge/nso_bridge/nsa.py", line 10, in <module> from nso_bridge.models import ServiceToken, UserInfo File "/Users/zhangweihua/work/workspace/python3workspace/Nintendo_Switch_Online_API_Bridge/nso_bridge/models/__init__.py", line 1, in <module> from nso_bridge.models.accounts import Accounts, Login, ServiceToken File "/Users/zhangweihua/work/workspace/python3workspace/Nintendo_Switch_Online_API_Bridge/nso_bridge/models/accounts.py", line 74, in <module> class Login(BaseModel): File "pydantic/main.py", line 178, in pydantic.main.ModelMetaclass.__new__ File "pydantic/typing.py", line 399, in pydantic.typing.resolve_annotations """Special type construct to mark class variables. File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/typing.py", line 270, in _eval_type return t._evaluate(globalns, localns) File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/typing.py", line 518, in _evaluate eval(self.__forward_code__, globalns, localns), File "<string>", line 1, in <module> TypeError: unsupported operand type(s) for |: 'ModelMetaclass' and 'NoneType'