mypy

d4dc00f6 - Add support for union types as X | Y (PEP 604) (#9647)

Add support for union types as X | Y (PEP 604) (#9647) Co-authored-by: Philippe Prados <pprados@octo.com> Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>