*   `tf.train.Checkpoint`:
    *   Now accepts a `root` argument in the initialization, which generates a
        checkpoint with a root object. This allows users to create a
        `Checkpoint` object that is compatible with Keras `model.save_weights()`
        and `model.load_weights`. The checkpoint is also compatible with the
        checkpoint saved in the `variables/` folder in the SavedModel.

- cloud.google.com/go/storage: v1.0.0
- dmitri.shuralyov.com/gpu/mtl: 666a987
- github.com/cespare/xxhash/v2: [v2.1.1](https://github.com/cespare/xxhash/v2/tree/v2.1.1)
- github.com/checkpoint-restore/go-criu/v4: [v4.0.2](https://github.com/checkpoint-restore/go-criu/v4/tree/v4.0.2)
- github.com/chzyer/logex: [v1.1.10](https://github.com/chzyer/logex/tree/v1.1.10)