module Orpc_pp:sig
..end
val pp_array : (Format.formatter -> 'a -> unit) -> Format.formatter -> 'a array -> unit
val pp_list : (Format.formatter -> 'a -> unit) -> Format.formatter -> 'a list -> unit
val pp_option : (Format.formatter -> 'a -> unit) -> Format.formatter -> 'a option -> unit
module type Trace =sig
..end
module Trace_of_formatter: