def serialize_change_entry_for_list(self, field_info):
        return dict([
            (key, [
                value[0]
                for value in field_info[key]
            ])
            for key in ('new', 'old', 'added', 'removed')
            if key in field_info
        ])
Fast scalar
dataset/ETHPy150Open reviewboard/reviewboard/reviewboard/reviews/fields.py/BaseReviewRequestField.serialize_change_entry_for_list--crossover with--dataset/ETHPy150Open OpenMDAO/OpenMDAO/openmdao/core/vec_wrapper.py/Accessor._get_scalar