def get_instance(self, instance_loader, row):
        return instance_loader.get_instance(row)
Returns an aggregate hash for a collection of models, including any
dataset/ETHPy150Open django-import-export/django-import-export/import_export/resources.py/Resource.get_instance--crossover with--dataset/ETHPy150Open jahlborn/appengine-rest-server/src/main/python/rest/__init__.py/Dispatcher.models_to_hash