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(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * Copyright INRIA, CNRS and contributors *)
(* <O___,, * (see version control and CREDITS file for authors & dates) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(* * (see LICENSE file for the text of the license) *)
(************************************************************************)
(** Non-empty lists *)
type +'a t
val head : 'a t -> 'a
val tail : 'a t -> 'a t option
val singleton : 'a -> 'a t
val iter : ('a -> unit) -> 'a t -> unit
val map : ('a -> 'b) -> 'a t -> 'b t
val map2 : ('a -> 'b -> 'c) -> 'a t -> 'b t -> 'c t
val map_head : ('a -> 'a) -> 'a t -> 'a t
val push : 'a -> 'a t option -> 'a t
val to_list : 'a t -> 'a list
(** May raise Invalid_argument *)
val of_list : 'a list -> 'a t
val repr : 'a t -> 'a * 'a list
val of_repr : 'a * 'a list -> 'a t
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