# tf.raw_ops.SnapshotDatasetV2

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Creates a dataset that will write to / read from a snapshot.

#### View aliases


**Compat aliases for migration**

See
[Migration guide](https://www.tensorflow.org/guide/migrate) for
more details.

[`tf.compat.v1.raw_ops.SnapshotDatasetV2`](https://www.tensorflow.org/api_docs/python/tf/raw_ops/SnapshotDatasetV2)

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    tf.raw_ops.SnapshotDatasetV2(
        input_dataset,
        path,
        reader_func_other_args,
        shard_func_other_args,
        output_types,
        output_shapes,
        reader_func,
        shard_func,
        compression='',
        reader_prefix='',
        writer_prefix='',
        hash_valid=False,
        hash=0,
        metadata='',
        name=None
    )

This dataset attempts to determine whether a valid snapshot exists at the
`snapshot_path`, and reads from the snapshot in lieu of using `input_dataset`.
If not, it will run the preprocessing pipeline as usual, and write out a
snapshot of the data processed for future use.

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| ## Args ||
|---|---|
| `input_dataset` | A `Tensor` of type `variant`. A variant tensor representing the input dataset. |
| `path` | A `Tensor` of type `string`. The path we should write snapshots to / read snapshots from. |
| `reader_func_other_args` | A list of `Tensor` objects. |
| `shard_func_other_args` | A list of `Tensor` objects. |
| `output_types` | A list of `tf.DTypes` that has length `>= 1`. |
| `output_shapes` | A list of shapes (each a [`tf.TensorShape`](https://www.tensorflow.org/versions/r2.13/api_docs/python/tf/TensorShape) or list of `ints`) that has length `>= 1`. |
| `reader_func` | A function decorated with @Defun. Optional. A function to control how to read data from snapshot shards. |
| `shard_func` | A function decorated with @Defun. Optional. A function to control how to shard data when writing a snapshot. |
| `compression` | An optional `string`. Defaults to `""`. The type of compression to be applied to the saved snapshot files. |
| `reader_prefix` | An optional `string`. Defaults to `""`. |
| `writer_prefix` | An optional `string`. Defaults to `""`. |
| `hash_valid` | An optional `bool`. Defaults to `False`. |
| `hash` | An optional `int`. Defaults to `0`. |
| `metadata` | An optional `string`. Defaults to `""`. |
| `name` | A name for the operation (optional). |

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| ## Returns ||
|---|---|
| A `Tensor` of type `variant`. ||

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