For context, if others aren't familiar: type hinting generics were added to Python 3.9 by PEP 585 (also available in Python 3.7+ with the annotations future imp

For context, if others aren't familiar: type hinting generics were added to Python 3.9 by PEP 585 (also available in Python 3.7+ with the annotations future import). PEP 484 previously added type hints to Python 3.5 as explicit imports from the stdlib's typing module. https://peps.python.org/pep-0585/ https://peps.python.org/pep-0585/ https://peps.python.org/pep-0484/ https://peps.python.org/pep-0484/