val create : int -> 'a -> 'b array
val init : int -> ( int -> 'a ) -> 'a array
val get : 'a array -> int -> 'b
val set : 'a array -> int -> 'b -> unit
val iteri : ( int -> 'a -> unit ) -> 'b array -> unit
val map : ( 'a -> 'b ) -> 'a array -> 'b array
val mapi : ( int -> 'a -> 'b ) -> 'c array -> 'd array
val foldi : ( int -> 'a -> 'b -> 'c ) -> 'd array -> 'e -> 'f
val fold : ( 'a -> 'b -> 'b ) -> 'a array -> 'b -> 'b