`sig
type verbosity = [ `Name_abbrev_args | `Name_full_args | `Name_only ]
val string_of_request :
Rpc_util.verbosity -> Rpc_program.t -> string -> Xdr.xdr_value -> string
val string_of_response :
Rpc_util.verbosity -> Rpc_program.t -> string -> Xdr.xdr_value -> string
val string_of_value : Xdr.xdr_type_term -> Xdr.xdr_value -> string
val hex_dump_m : Netsys_mem.memory -> int -> int -> string
val hex_dump_s : string -> int -> int -> string
end`