Record_builder.Partial_applicative_S2
A subset of the operations of an applicative with two type parameters.
type ('a, 'e) t
val map : ('a, 'e) t -> f:('a -> 'b) -> ('b, 'e) t
val both : ('a, 'e) t -> ('b, 'e) t -> ('a * 'b, 'e) t