Get class inheritance for the specified device.

        :param argin: Device name
        :type: tango.DevString
        :return: Classes off the specified device.
        [0] - is the class of the device.
        [1] - is the class from the device class is inherited.
        ........and so on
        :rtype: tango.DevVarStringArray

def DbGetClassInheritanceForDevice(self, argin):
        """ Get class inheritance for the specified device.

        :param argin: Device name
        :type: tango.DevString
        :return: Classes off the specified device.
        [0] - is the class of the device.
        [1] - is the class from the device class is inherited.
        ........and so on
        :rtype: tango.DevVarStringArray """
        self._log.debug("In DbGetClassInheritanceForDevice()")
        return self.db.get_class_inheritance_for_device(argin)