.. Copyright (C) 2021-2023 Modin authors SPDX-License-Identifier: Apache-2.0 :orphan: Unique Data Identifier """""""""""""""""""""" The backends that do not have own implementation of future object like ``ray.ObjectRef`` use :py:class:`~unidist.core.backends.common.data_id.DataID` objects to associate with data objects in backend-specific object storages. .. autoclass:: unidist.core.backends.common.data_id.DataID :members: