why does mypy complain '"Type[Logger]" has no attribute "manager"'

app.py contains just two lines of code:

$ cat app.py 
import logging

print(logging.Logger.manager.loggerDict.values())

output:

dict_values([])

so it runs successfully, but mypy complains

$ mypy app.py 
app.py:3:7: error: "Type[Logger]" has no attribute "manager"
Found 1 error in 1 file (checked 1 source file)

wondering why?