[Python] Enforce type hinting in Pytho nclass

I need to enforce the type of a class variable, but more importantly, I need to enforce a list with its types. So if I have some code which looks like this:

class foo:
def __init__(self, value: list[int]):
self.value = value


How can I make sure that value is a list of integers?

I'm using Python version 3.9.4.

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