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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def device_class(self, device_class):
 """ Sets the device_class of this DeviceData. An ID representing the model and hardware revision of the device. :param device_class: The device_class of this DeviceData. :type: str """

        if device_class is not None and len(device_class) > 32:
            raise ValueError("Invalid value for `device_class`, length must be less than or equal to `32`")

        self._device_class = device_class