def only_translations(self):
        from olympia.translations import transformer
        # Add an extra select so these are cached separately.
        return (self.no_transforms().extra(select={'_only_trans': 1})
                .transform(transformer.get_trans))
Creates a customer for the given request (which means for the current
dataset/ETHPy150Open mozilla/addons-server/src/olympia/amo/models.py/TransformQuerySet.only_translations--crossover with--dataset/ETHPy150Open diefenbach/django-lfs/lfs/customer/utils.py/create_customer