def get_category_model(self):
        if self._cache_category is None:
            self._cache_category = get_cache().get_category_by_alias(self.alias)
        return self._cache_category
If there is a manifesation configured with metadata on this node, then
dataset/ETHPy150Open idlesign/django-sitecats/sitecats/toolbox.py/CategoryList.get_category_model--crossover with--dataset/ETHPy150Open ClusterHQ/flocker/flocker/node/agents/test/test_blockdevice.py/CalculateDesiredStateTests.test_manifestation_metadata