type t =
  | VUnit
  | VInt of int
  | VBool of bool
  | VString of string
  | VTuple of t list
  | VRecord of string * (string * t) list
  | VCollection of t Delta_runtime.Pure_map.t

val to_string : t -> string
val collection_of_list : (int * t) list -> t Delta_runtime.Pure_map.t
val collection_to_list : t Delta_runtime.Pure_map.t -> (int * t) list
val equal : t -> t -> bool
val field : t -> string -> t option
val is_collection : t -> bool