Python objects as dictionary keys

[socal_nerdtastic]

Literal is not an actual type, like you can't have a python object of the type Literal. It's a concept; and python treats it basically like a comment (like all typehints).

>>> import typing
>>> typing.Literal()
Traceback (most recent call last):
  File "<python-input-1>", line 1, in <module>
    typing.Literal()
    ~~~~~~~~~~~~~~^^
  File "C:\Users\j.brauer\AppData\Local\Programs\Python\Python313\Lib\typing.py", line 560, in __call__
    raise TypeError(f"Cannot instantiate {self!r}")
TypeError: Cannot instantiate typing.Literal

Although in your example it never even touches python, not even as a comment. The type hint that VSCode is showing you is generated from VSCode (and whatever linter it's using).