* Now it's correct within the laws of the type system, but makes zero practical sense, * because there exists no runtime representation of the type `Date & string`. * * The type system doesn't care whether a type can be represented in runtime though.

The Ultimate Guide to Python Type Checking

Type hints cheat sheet (Python 3)¶ This document is a quick cheat sheet showing how the PEP 484 type annotation notation represents various common types in Python 3.