Get list of Tango classes for a device server

        :param argin: device server process name
        :type: tango.DevString
        :return: list of classes for this device server
        :rtype: tango.DevVarStringArray

def DbGetDeviceServerClassList(self, argin):
        """ Get list of Tango classes for a device server

        :param argin: device server process name
        :type: tango.DevString
        :return: list of classes for this device server
        :rtype: tango.DevVarStringArray """
        self._log.debug("In DbGetDeviceServerClassList()")
        argin = replace_wildcard(argin)
        return self.db.get_server_class_list(argin)