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Hedgehog.Internal.State: Add instance Applicative Concrete #493

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@endgame endgame commented Jun 16, 2023

Make Concrete an instance of Applicative. This is useful if one wants to wrap Symbolic values in a free Applicative and "pretend" to compute on Symbolic values during an update hook. Example: package free provides retractAp :: Applicative f => Ap f a -> f a.

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Thank you, @endgame 👍 Would it be possible to add an example in tests?

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