Via_contramap_fst_and_map_snd_and_right.Req
type ('a, 'b) t
The type held by the Choice Profunctor.
Choice Profunctor
val contramap_fst : ('a -> 'b) -> ('b, 'c) t -> ('a, 'c) t
Contramapping over the first argument.
val map_snd : ('b -> 'c) -> ('a, 'b) t -> ('a, 'c) t
Mapping over the second argument.
val right : ('a, 'b) t -> (('c, 'a) Stdlib.Either.t, ('c, 'b) Stdlib.Either.t) t
Act on the right parameter of the sum.