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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 DbGetClassForDevice(self, argin):
 """ Get Tango class for the specified device. :param argin: Device name :type: tango.DevString :return: Device Tango class :rtype: tango.DevString """

        self._log.debug("In DbGetClassForDevice()")
        return self.db.get_class_for_device(argin)