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A transformation that prefetches dataset values to the given device.

    device, buffer_size=None

NOTE: Although the transformation creates a tf.data.Dataset, the transformation must be the final Dataset in the input pipeline.


  • device: A string. The name of a device to which elements will be prefetched.
  • buffer_size: (Optional.) The number of elements to buffer on device. Defaults to an automatically chosen value.


A Dataset transformation function, which can be passed to tf.data.Dataset.apply.