'Return the device specific attributes.'

@property
def device_state_attributes(self):

    data = {}
    if (self.type is SENSOR_TYPE_STATUS):
        if self.clean_time_start:
            data[ATTR_CLEAN_START] = self.clean_time_start
        if self.clean_time_stop:
            data[ATTR_CLEAN_STOP] = self.clean_time_stop
        if self.clean_area:
            data[ATTR_CLEAN_AREA] = self.clean_area
        if self.clean_suspension_charge_count:
            data[ATTR_CLEAN_SUSP_COUNT] = self.clean_suspension_charge_count
        if self.clean_suspension_time:
            data[ATTR_CLEAN_SUSP_TIME] = self.clean_suspension_time
        if self.clean_battery_start:
            data[ATTR_CLEAN_BATTERY_START] = self.clean_battery_start
        if self.clean_battery_end:
            data[ATTR_CLEAN_BATTERY_END] = self.clean_battery_end
    return data
