<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def getTrackedDeviceActivityLevel(self, unDeviceId):
 """Returns the level of activity on the device."""


        fn = self.function_table.getTrackedDeviceActivityLevel
        result = fn(unDeviceId)
        return result