<commit_before>* Have .stateless called automatically in Plan/Test.
* Rename Show ⇒ Display.
* Report user-defined `f` on failure.
* Action = Action | Point. Although `Plan.invariants` solves this now?
* Nest invariant coproducts, display choice value in History.
* Show O and/or S on failure.
* Action to log O and/or S.
* Around-Invariant through coproduct that isn't consistent before/after action.
* Rename `S` for `State`. Might be confusing that it isn't the state being tested.
* Rename to testate

* SJS module?
* React module<commit_msg>TODO.md<commit_after>* Rename Show ⇒ Display.
* Rename to testate
* Around-Invariant through coproduct that isn't consistent before/after action.


Maybe
=====
* Have .stateless called automatically in Plan/Test.
* Report user-defined `f` on failure.
* Nest invariant coproducts, display choice value in History.
* Show O and/or S on failure.
* Action to log O and/or S.
* Rename `S` for `State`. Might be confusing that it isn't the state being tested.
* JS module
* React module
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{'dir': 'git-commits-cleaned', 'id': '1471527', 'n_tokens_mistral': 311, 'n_tokens_neox': 303, 'n_words': 138}