How to use the udiskie.udisks1.Device function in udiskie

def _get_updated_device(self, object_path):
        obj = self._proxy.object.bus.get_object(object_path)
        try:
            prop_prox = self._property_proxy[object_path]
        except KeyError:
            prop_prox = yield obj.get_property_interface(Device.Interface)
            self._property_proxy[object_path] = prop_prox

        try:
            properties = yield prop_prox.GetAll()
        except GLib.GError:
            self._invalidate(object_path)
            yield Return(None)
            # TODO: return something useful? (NullDevice)
        else:
            itfc_prox = MethodsProxy(obj, Device.Interface)
            device = Device(self, object_path,
                            AttrDictView(properties), itfc_prox)
            yield Return(device)

obj = self._proxy.object.bus.get_object(object_path)
        try:
            prop_prox = self._property_proxy[object_path]
        except KeyError:
            prop_prox = yield obj.get_property_interface(Device.Interface)
            self._property_proxy[object_path] = prop_prox

        try:
            properties = yield prop_prox.GetAll()
        except GLib.GError:
            self._invalidate(object_path)
            yield Return(None)
            # TODO: return something useful? (NullDevice)
        else:
            itfc_prox = MethodsProxy(obj, Device.Interface)
            device = Device(self, object_path,
                            AttrDictView(properties), itfc_prox)
            yield Return(device)

def find(self, path):
        """
        Get a device proxy by device name or any mount path of the device.

        This searches through all accessible devices and compares device
        path as well as mount pathes.
        """
        if isinstance(path, Device):
            return path
        for device in self:
            if device.is_file(path):
                self._log.debug(_('found device owning "{0}": "{1}"',
                                  path, device))
                return device
        raise ValueError(_('no device found owning "{0}"', path))