BatHashtbl.Labels

`sig
val add : ('a, 'b) BatHashtbl.t -> key:'a -> data:'b -> unit
val replace : ('a, 'b) BatHashtbl.t -> key:'a -> data:'b -> unit
val iter : f:(key:'a -> data:'b -> unit) -> ('a, 'b) BatHashtbl.t -> unit
val map :
f:(key:'a -> data:'b -> 'c) ->
('a, 'b) BatHashtbl.t -> ('a, 'c) BatHashtbl.t
val filter :
f:('a -> bool) -> ('b, 'a) BatHashtbl.t -> ('b, 'a) BatHashtbl.t
val filteri :
f:(key:'a -> data:'b -> bool) ->
('a, 'b) BatHashtbl.t -> ('a, 'b) BatHashtbl.t
val filter_map :
f:(key:'a -> data:'b -> 'c option) ->
('a, 'b) BatHashtbl.t -> ('a, 'c) BatHashtbl.t
val fold :
f:(key:'a -> data:'b -> 'c -> 'c) ->
('a, 'b) BatHashtbl.t -> init:'c -> 'c
end`