Ah, I recently started using type hints in Python. Would've loved to see how that compares even though it's not inherently a statically typed language!
Python's type system is an instance of "gradual typing" (like e.g. TypeScript). PEP 483 is actually a nice introduction to this: https://www.python.org/dev/peps/pep-0483/
Right, it should still be possible to statically type it for the purpose of testing. Wouldn't really be close to practical usage but I'd still be interested in seeing how it compares.