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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get(self, key, default=None):
 """Get a key."""

        key = "{0}{1}".format(self.prefix, key)

        data = self.redis.get(key)
        # Redis returns None not an exception
        if data is None:
            data = default
        else:
            data = json.loads(data)

        return data