<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def getDesc(self, entry):
 """Returns description for stat entry. @param entry: Entry name. @return: Description for entry. """

        if len(self._descDict) == 0:
            self.getStats()
        return self._descDict.get(entry)