Newtype of Pandas dataframe

[falan]

from typing import NewType

import pandas as pd

NewTypeDf = NewType("NewTypeDf", pd.DataFrame)

def test() -> NewTypeDf:
    return NewTypeDf(
       pd.DataFrame({})
    )

Pyright report: error: Illegal type annotation: variable not allowed unless it is a type alias (reportGeneralTypeIssues)
If I change

NewTypeDf = NewType("NewTypeDf", pd.DataFrame)

to

NewTypeDf = NewType("NewTypeDf", str)

, there is no error reported.
Is this a bug of pyright or how can I typing this?

[hauntsaninja]

Do you have pandas-stubs installed? If not, try installing them and see if it fixes.

[falan]

The error remains if I install the pandas-stubs.
When adding the setting of Pyright "useLibraryCodeForTypes = true", the problem is solved.