Hal_interfaces.Org_freedesktop_Hal_Device_VolumeSourcetype 'a members = {m_Eject : 'a OBus_object.t -> string list -> int32 Lwt.t;m_Mount : 'a OBus_object.t -> (string * string * string list) -> int32 Lwt.t;m_Unmount : 'a OBus_object.t -> string list -> int32 Lwt.t;}