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(* Open Source License                                                       *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com>     *)
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(** {2 Helper functions} *)

type 'a lazyt = unit -> 'a
type 'a lazy_list_t = LCons of 'a * ('a lazy_list_t tzresult Lwt.t lazyt)
type 'a lazy_list = 'a lazy_list_t tzresult Lwt.t

(** Include bounds *)
val (-->) : int -> int -> int list
val (--->) : Int32.t -> Int32.t -> Int32.t list

val pp_print_paragraph : Format.formatter -> string -> unit

val take: int -> 'a list -> ('a list * 'a list) option

(** Some (input with [prefix] removed), if string has [prefix], else [None] **)
val remove_prefix: prefix:string -> string -> string option

(** [remove nb list] remove the first [nb] elements from the list [list]. *)
val remove_elem_from_list: int -> 'a list -> 'a list