<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get(self, default=None):
 """ return the cached value or default if it can't be found :param default: default value :return: cached value """

        d = cache.get(self.key)
        return ((json.loads(d.decode('utf-8')) if self.serialize else d)
                if d is not None
                else default)