`sig
type t = private OBus_proxy.proxy
external of_proxy : OBus_proxy.proxy -> t = "%identity"
external to_proxy : t -> OBus_proxy.proxy = "%identity"
val changed : t -> unit OBus_signal.t
val connector_type : t -> string OBus_property.r
val number : t -> int OBus_property.r
val parent : t -> UDisks_adapter.t OBus_property.r
val adapter : t -> UDisks_adapter.t OBus_property.r
val native_path : t -> string OBus_property.r
val properties : t -> OBus_property.group
end`