Not really knowing fully about how type checkers work, one thing I struggled with a fair amount working with Mypy is how the stubs made available from various l

Not really knowing fully about how type checkers work, one thing I struggled with a fair amount working with Mypy is how the stubs made available from various libraries were both all over the place in quality and not straightforward as a beginner to get working. Is this approach of using stubs a requirement for basically any static type checker that Python uses, or is this a specific way that Mypy chose to implement this concept?