For those wondering, like I was, where that quote comes from, it's from PEP 560 "Core support for typing module and generic types" - https://www.python.org/dev/

For those wondering, like I was, where that quote comes from, it's from PEP 560 "Core support for typing module and generic types" - https://www.python.org/dev/peps/pep-0560/ https://www.python.org/dev/peps/pep-0560/