*   Extending the TF 2.0 support for `shuffle(...,
        reshuffle_each_iteration=True)` and `cache()` to work across different
        Python iterators for the same dataset.
    *   Removing the `experimental_numa_aware` option from `tf.data.Options`.
    *   Add `num_parallel_reads` and passing in a Dataset containing filenames
        into `TextLineDataset` and `FixedLengthRecordDataset`.