[3.11] gh-111181: Fix enum doctests (GH-111180) (GH-111617)

gh-111181: Fix enum doctests (GH-111180)

Co-authored-by: Ethan Furman <ethan@stoneleaf.us>
(cherry picked from commit c4dc5a6ae8aa13abb743182df088f1a3526d1bcd)

Co-authored-by: Nikita Sobolev <mail@sobolevn.me>