properties:
                  matchLabels:
                    additionalProperties:
                      type: string
                    description: One or more labels that indicate a specific set of
                      pods/VMs on which a policy should be applied.
                    type: object
                type: object
              sha256:

                properties:
                  matchLabels:
                    additionalProperties:
                      type: string
                    description: One or more labels that indicate a specific set of
                      pods/VMs on which a policy should be applied.
                    type: object
                type: object
              sha256:

        policy with `tf.data.experimental.service.ShardingPolicy` enum. It can
        be one of `OFF` (equivalent to today's `"parallel_epochs"` mode),
        `DYNAMIC` (equivalent to today's `"distributed_epoch"` mode), or one of
        the static sharding policies: `FILE`, `DATA`, `FILE_OR_DATA`, or `HINT`
        (corresponding to values of `tf.data.experimental.AutoShardPolicy`).