`sig type t module T : sig type t = t val equal : t -> t -> bool val hash : t -> int val compare : t -> t -> int val output : out_channel -> t -> unit val print : Format.formatter -> t -> unit end val equal : T.t -> T.t -> bool val hash : T.t -> int val compare : T.t -> T.t -> int val output : out_channel -> T.t -> unit val print : Format.formatter -> T.t -> unit module Set : sig type elt = T.t type t = Set.Make(T).t val empty : t val is_empty : t -> bool val mem : elt -> t -> bool val add : elt -> t -> t val singleton : elt -> t val remove : elt -> t -> t val union : t -> t -> t val inter : t -> t -> t val diff : t -> t -> t val compare : t -> t -> int val equal : t -> t -> bool val subset : t -> t -> bool val iter : (elt -> unit) -> t -> unit val fold : (elt -> 'a -> 'a) -> t -> 'a -> 'a val for_all : (elt -> bool) -> t -> bool val exists : (elt -> bool) -> t -> bool val filter : (elt -> bool) -> t -> t val partition : (elt -> bool) -> t -> t * t val cardinal : t -> int val elements : t -> elt list val min_elt : t -> elt val max_elt : t -> elt val choose : t -> elt val split : elt -> t -> t * bool * t val find : elt -> t -> elt val output : Pervasives.out_channel -> Identifiable.S.t -> unit val print : Format.formatter -> Identifiable.S.t -> unit val to_string : Identifiable.S.t -> string val of_list : elt list -> Identifiable.S.t val map : (elt -> elt) -> Identifiable.S.t -> Identifiable.S.t end module Map : sig type key = T.t type 'a t = 'a Map.Make(T).t val empty : 'a t val is_empty : 'a t -> bool val mem : key -> 'a t -> bool val add : key -> 'a -> 'a t -> 'a t val singleton : key -> 'a -> 'a t val remove : key -> 'a t -> 'a t val merge : (key -> 'a option -> 'b option -> 'c option) -> 'a t -> 'b t -> 'c t val union : (key -> 'a -> 'a -> 'a option) -> 'a t -> 'a t -> 'a t val compare : ('a -> 'a -> int) -> 'a t -> 'a t -> int val equal : ('a -> 'a -> bool) -> 'a t -> 'a t -> bool val iter : (key -> 'a -> unit) -> 'a t -> unit val fold : (key -> 'a -> 'b -> 'b) -> 'a t -> 'b -> 'b val for_all : (key -> 'a -> bool) -> 'a t -> bool val exists : (key -> 'a -> bool) -> 'a t -> bool val filter : (key -> 'a -> bool) -> 'a t -> 'a t val partition : (key -> 'a -> bool) -> 'a t -> 'a t * 'a t val cardinal : 'a t -> int val bindings : 'a t -> (key * 'a) list val min_binding : 'a t -> key * 'a val max_binding : 'a t -> key * 'a val choose : 'a t -> key * 'a val split : key -> 'a t -> 'a t * 'a option * 'a t val find : key -> 'a t -> 'a val map : ('a -> 'b) -> 'a t -> 'b t val mapi : (key -> 'a -> 'b) -> 'a t -> 'b t val filter_map : 'a Identifiable.S.t -> f:(key -> 'a -> 'b option) -> 'b Identifiable.S.t val of_list : (key * 'a) list -> 'a Identifiable.S.t val disjoint_union : ?eq:('a -> 'a -> bool) -> 'a Identifiable.S.t -> 'a Identifiable.S.t -> 'a Identifiable.S.t val union_right : 'a Identifiable.S.t -> 'a Identifiable.S.t -> 'a Identifiable.S.t val union_left : 'a Identifiable.S.t -> 'a Identifiable.S.t -> 'a Identifiable.S.t val union_merge : ('a -> 'a -> 'a) -> 'a Identifiable.S.t -> 'a Identifiable.S.t -> 'a Identifiable.S.t val rename : key Identifiable.S.t -> key -> key val map_keys : (key -> key) -> 'a Identifiable.S.t -> 'a Identifiable.S.t val keys : 'a Identifiable.S.t -> Identifiable.S.Set.t val data : 'a Identifiable.S.t -> 'a list val of_set : (key -> 'a) -> Identifiable.S.Set.t -> 'a Identifiable.S.t val transpose_keys_and_data : key Identifiable.S.t -> key Identifiable.S.t val print : (Format.formatter -> 'a -> unit) -> Format.formatter -> 'a Identifiable.S.t -> unit end module Tbl : sig type key = T.t type 'a t = 'a Hashtbl.Make(T).t val create : int -> 'a t val clear : 'a t -> unit val reset : 'a t -> unit val copy : 'a t -> 'a t val add : 'a t -> key -> 'a -> unit val remove : 'a t -> key -> unit val find : 'a t -> key -> 'a val find_all : 'a t -> key -> 'a list val replace : 'a t -> key -> 'a -> unit val mem : 'a t -> key -> bool val iter : (key -> 'a -> unit) -> 'a t -> unit val filter_map_inplace : (key -> 'a -> 'a option) -> 'a t -> unit val fold : (key -> 'a -> 'b -> 'b) -> 'a t -> 'b -> 'b val length : 'a t -> int val stats : 'a t -> Hashtbl.statistics val to_list : 'a Identifiable.S.t -> (Identifiable.S.T.t * 'a) list val of_list : (Identifiable.S.T.t * 'a) list -> 'a Identifiable.S.t val to_map : 'a Identifiable.S.t -> 'a Identifiable.S.Map.t val of_map : 'a Identifiable.S.Map.t -> 'a Identifiable.S.t val memoize : 'a Identifiable.S.t -> (key -> 'a) -> key -> 'a val map : 'a Identifiable.S.t -> ('a -> 'b) -> 'b Identifiable.S.t end end`