Sch.Validation
type 'a t =
| Success of 'a
| Error of decode_error list
val pure : 'a -> 'a t
val map : ('a -> 'b) -> 'a t -> 'b t
val apply : ('a -> 'b) t -> 'a t -> 'b t
val to_result : 'a t -> ('a, (string * string) list) Stdlib.result
val traverse : ('a -> 'b t) -> 'a list -> 'b list t