mypy, type aliases and type variables

[Larz60+]

The documentation for typing states:

NOTE: in Python 3.5 and later, the typing module lives in the stdlib, and installing this package has NO EFFECT, because stdlib takes higher precedence than the installation directory. To get a newer version of the typing module in Python 3.5 or later, you have to upgrade to a newer Python (bugfix) version. For example, typing in Python 3.6.0 is missing the definition of ‘Type’ – upgrading to 3.6.2 will fix this.

Since you are using python 3.11, it has no effect and therefore should not be imported.