code: def DbGetDeviceClassList(self, argin):
          
          self._log.debug("In DbGetDeviceClassList()")
          return self.db.get_device_class_list(argin)
docs: Get Tango classes/device list embedded in a specific device server
  
          :param argin: Device server process name
          :type: tango.DevString
          :return: Str[0] = Device name
          Str[1] = Tango class
          Str[n] = Device name
          Str[n + 1] = Tango class
          :rtype: tango.DevVarStringArray