Module type Container.S0

module type S0 = sig .. end

type t 

type elt 

val mem : ?equal:(elt -> elt -> bool) ->
       t -> elt -> bool

val length : t -> int

val is_empty : t -> bool

val iter : t -> f:(elt -> unit) -> unit

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

val exists : t -> f:(elt -> bool) -> bool

val for_all : t -> f:(elt -> bool) -> bool

val count : t -> f:(elt -> bool) -> int

val find : t -> f:(elt -> bool) -> elt option

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

val to_list : t -> elt list

val to_array : t -> elt array