outputable/c
The `outputable/c` contract is currently just an alias for `any/c`, however, because checking the contract seems to be too expensive. original commit: 416b680d742afafe7f5632ca94cb36bac25534b8
original commit: f1521de96b52a0f52ec23a02c5016622524086e5
original commit: f943d37d7d30507c8b76fd358d568f361bc0f2ec