Module Map.Or_duplicate

type 'a t = [
  1. | `Ok of 'a
  2. | `Duplicate
]
val compare : 'a. ('a -> 'a -> int) -> 'a t -> 'a t -> int
val equal : 'a. ('a -> 'a -> bool) -> 'a t -> 'a t -> bool
val sexp_of_t : 'a. ('a -> Sexplib0.Sexp.t) -> 'a t -> Sexplib0.Sexp.t