def METHOD_NAME(self):
    """
    Get the device's descriptive string
    :return: Device string like 'BlackWidow Ultimate 2013'
    :rtype: str
    """
    self.logger.debug("DBus call get_device_name")
    driver_path = self.get_driver_path('device_type')
    with open(driver_path, 'r') as driver_file:
        return driver_file.read().strip()