Module type Fold_map.Fold_map


module type Fold_map = sig .. end

type in_value 
type out_value 
type 'a t 
val empty : 'a t
val singleton : 'a -> in_value -> 'a t
val is_empty : 'a t -> bool
val cardinal : 'a t -> int
val add : key:'a ->
data:in_value ->
'a t -> 'a t
val find : 'a t -> 'a -> out_value
val remove : 'a t -> 'a -> 'a t
val set : key:'a ->
data:out_value ->
'a t -> 'a t
val mem : 'a t -> 'a -> bool
val iter : f:(key:'a -> data:out_value -> unit) ->
'a t -> unit
val fold : f:(key:'a -> data:out_value -> 'b -> 'b) ->
'a t -> init:'b -> 'b
val filter : f:(key:'a -> data:out_value -> bool) ->
'a t -> 'a t
val keys : 'a t -> 'a list
val data : 'a t -> out_value list
val to_alist : 'a t -> ('a * out_value) list
val of_list : ('a * in_value) list -> 'a t
val for_all : f:(out_value -> bool) -> 'a t -> bool
val exists : f:(out_value -> bool) -> 'a t -> bool
val to_map : 'a t -> ('a, out_value) Core.Std.Map.t
val of_map : ('a, out_value) Core.Std.Map.t -> 'a t