# Module type Container_intf.Generic

    module type Generic = sig .. end

    type 'a t

    type 'a elt

    val mem : ?equal:('a elt ->
                   'a elt -> bool) ->
           'a t -> 'a elt -> bool

    val length : 'a t -> int

    val is_empty : 'a t -> bool

    val iter : 'a t ->
           f:('a elt -> unit) -> unit

    val fold : 'a t ->
           init:'accum ->
           f:('accum -> 'a elt -> 'accum) -> 'accum

    val exists : 'a t ->
           f:('a elt -> bool) -> bool

    val for_all : 'a t ->
           f:('a elt -> bool) -> bool

    val count : 'a t ->
           f:('a elt -> bool) -> int

    val sum : (module Commutative_group.S with type t = 'sum) ->
           'a t ->
           f:('a elt -> 'sum) -> 'sum

    val find : 'a t ->
           f:('a elt -> bool) ->
           'a elt option

    val find_map : 'a t ->
           f:('a elt -> 'b option) -> 'b option

    val to_list : 'a t -> 'a elt list

    val to_array : 'a t -> 'a elt array

    val min_elt : 'a t ->
           cmp:('a elt -> 'a elt -> int) ->
           'a elt option

    val max_elt : 'a t ->
           cmp:('a elt -> 'a elt -> int) ->
           'a elt option