It’s not enabled by default in the shipped builds, so it needs to be enabled at compile time ... something is a given type. typing.TypeIs lets us do the same thing in Python’s type hinting ...

Sadly, you still gotta compile it from source to try out the bleeding-edge goodies. Auto-generate Python type hints with Monkeytype Sick of those no-type-hinted-Python-code blues? Monkeytype ...