def serialize(game):

    return json.dumps(game, default=_save_object, indent=2)
Check for assertEqual(A, None) or assertEqual(None, A) sentences
dataset/ETHPy150Open danielyule/hearthbreaker/hearthbreaker/serialization/serialization.py/serialize--crossover with--dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/hacking/checks.py/assert_equal_none