SYB generics and Monad vs Applicative

[Conal Elliott]

I've been learning to the SYB generics functionality in Data.Data and the
syb package. I find myself wondering whether the use of Monad and MonadPlus
could be generalized to Applicative and Alternative. My first experiments
suggest that they can be and that some of the code can be greatly
simplified.

Has this question already been explored?

-- Conal
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