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Gets next element for the provided shard number.

multi_device_iterator A Tensor of type resource. A MultiDeviceIterator resource.
shard_num A Tensor of type int32. Integer representing which shard to fetch data for.
incarnation_id A Tensor of type int64. Which incarnation of the MultiDeviceIterator is running.
output_types A list of tf.DTypes that has length >= 1. The type list for the return values.
output_shapes A list of shapes (each a tf.TensorShape or list of ints) that has length >= 1. The list of shapes being produced.
name A name for the operation (optional).

A list of Tensor objects of type output_types.