package middleware

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in-package search v0.2.0

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type ('m, 'a) t

val map : ('a -> 'b) -> ('a, 'm) t -> ('b, 'm) t

map fn a applies fn to a, producing a 'b t.

val bind : ('a, 'm) t -> ('a -> ('b, 'm) t) -> ('b, 'm) t

bind fn a sequentially composes a with fn, passing the result of the first action to fn.

val return : 'a -> ('a, 'm) t

return a injects the value a into the monadic type.