[3.12] gh-104874: Document NewType.supertype (GH-104875) (#104906)

gh-104874: Document NewType.__supertype__ (GH-104875)
(cherry picked from commit 41768a2bd3a8f57e6ce4e4ae9cab083b69817ec1)

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

Miss Islington (bot) committed 2y ago

a06423388618424e2c6dab2ab503fdca5a953e38

Parent: c4bc97a

Committed by GitHub <noreply@github.com> on 5/24/2023, 11:33:52 PM

[3.12] gh-104874: Document NewType.__supertype__ (GH-104875) (#104906)

[3.12] gh-104874: Document NewType.supertype (GH-104875) (#104906)