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(*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*)
open! NS0
include module type of Core.Option
val pp : ('a_pp -> 'a -> unit, unit) fmt -> 'a_pp -> 'a option pp
(** Pretty-print an option. *)
val or_else : f:(unit -> 'a option) -> 'a option -> 'a option
(** [or_else ~f] is [f ()] on [None] and otherwise identity *)
val cons : 'a t -> 'a list -> 'a list
module Import : sig
include Monad_syntax with type 'a t := 'a option
include module type of Monad_infix
end