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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 set_to_cache(self):
 """ Add widget object to Django's cache. You may need to overwrite this method, to pickle all information that is required to serve your JSON response view. """

        try:
            cache.set(self._get_cache_key(), {
                'widget': self,
                'url': self.get_url(),
            })
        except (PicklingError, AttributeError):
            msg = "You need to overwrite \"set_to_cache\" or ensure that %s is serialisable."
            raise NotImplementedError(msg % self.__class__.__name__)