sig val fprintf : Stdlib.out_channel -> ('a, Stdlib.out_channel, unit) Stdlib.format -> 'a val printf : ('a, Stdlib.out_channel, unit) Stdlib.format -> 'a val eprintf : ('a, Stdlib.out_channel, unit) Stdlib.format -> 'a val sprintf : ('a, unit, string) Stdlib.format -> 'a val bprintf : Stdlib.Buffer.t -> ('a, Stdlib.Buffer.t, unit) Stdlib.format -> 'a val ifprintf : 'b -> ('a, 'b, 'c, unit) Stdlib.format4 -> 'a val ibprintf : Stdlib.Buffer.t -> ('a, Stdlib.Buffer.t, unit) Stdlib.format -> 'a val kfprintf : (Stdlib.out_channel -> 'd) -> Stdlib.out_channel -> ('a, Stdlib.out_channel, unit, 'd) Stdlib.format4 -> 'a val ikfprintf : ('b -> 'd) -> 'b -> ('a, 'b, 'c, 'd) Stdlib.format4 -> 'a val ksprintf : (string -> 'd) -> ('a, unit, string, 'd) Stdlib.format4 -> 'a val kbprintf : (Stdlib.Buffer.t -> 'd) -> Stdlib.Buffer.t -> ('a, Stdlib.Buffer.t, unit, 'd) Stdlib.format4 -> 'a val ikbprintf : (Stdlib.Buffer.t -> 'd) -> Stdlib.Buffer.t -> ('a, Stdlib.Buffer.t, unit, 'd) Stdlib.format4 -> 'a val kprintf : (string -> 'b) -> ('a, unit, string, 'b) Stdlib.format4 -> 'a end