Assoc (base.Base.List.Assoc)

type (!'a, !'b) t = ('a * 'b) list

val t_of_sexp : 
  (Sexplib0__.Sexp.t -> 'a) ->
  (Sexplib0__.Sexp.t -> 'b) ->
  Sexplib0__.Sexp.t ->
  ('a, 'b) t

val sexp_of_t : 
  ('a -> Sexplib0__.Sexp.t) ->
  ('b -> Sexplib0__.Sexp.t) ->
  ('a, 'b) t ->
  Sexplib0__.Sexp.t

val t_sexp_grammar : 
  'a Sexplib0.Sexp_grammar.t ->
  'b Sexplib0.Sexp_grammar.t ->
  ('a, 'b) t Sexplib0.Sexp_grammar.t

val add : ('a, 'b) t -> equal:('a -> 'a -> bool) -> 'a -> 'b -> ('a, 'b) t

val find : ('a, 'b) t -> equal:('a -> 'a -> bool) -> 'a -> 'b option

val find_exn : ('a, 'b) t -> equal:('a -> 'a -> bool) -> 'a -> 'b

val mem : ('a, 'b) t -> equal:('a -> 'a -> bool) -> 'a -> bool

val remove : ('a, 'b) t -> equal:('a -> 'a -> bool) -> 'a -> ('a, 'b) t

val map : ('a, 'b) t -> f:('b -> 'c) -> ('a, 'c) t

val inverse : ('a, 'b) t -> ('b, 'a) t

val group : ('a * 'b) list -> equal:('a -> 'a -> bool) -> ('a, 'b list) t

val sort_and_group : 
  ('a * 'b) list ->
  compare:('a -> 'a -> int) ->
  ('a, 'b list) t