def _get_categories(self):
        # categories is an Index, which is immutable -> no need to copy
        return self._categories
For the automatically included ``resource_uri`` field, dehydrate
dataset/ETHPy150Open pydata/pandas/pandas/core/categorical.py/Categorical._get_categories--crossover with--dataset/ETHPy150Open mozilla/inventory/vendor-local/src/django-tastypie/tastypie/resources.py/Resource.dehydrate_resource_uri