bpo-37805: Add tests for json.dump(..., skipkeys=True) (GH-15489)


https://bugs.python.org/issue37805

Automerge-Triggered-By: @methane
(cherry picked from commit 44cd86bbdddb1f7b05deba2c1986a1e98f992429)

Co-authored-by: Dong-hee Na <donghee.na92@gmail.com>
2 files changed