An op that enqueues TPUEmbedding input indices from a SparseTensor.
  }];

  let description = [{
This Op eases the porting of code that uses embedding_lookup_sparse(),
although some Python preprocessing of the SparseTensor arguments to
embedding_lookup_sparse() is required to produce the arguments to this Op,
since only a single EnqueueTPUEmbeddingSparseBatch Op is allowed per training
step.

*   `tf.nn`

    *   `tf.nn.embedding_lookup_sparse` and `tf.nn.safe_embedding_lookup_sparse` now support ids and weights described by `tf.RaggedTensor`s.
    *   Added a new boolean argument `allow_fast_lookup` to `tf.nn.embedding_lookup_sparse` and `tf.nn.safe_embedding_lookup_sparse`, which enables a simplified and typically faster lookup procedure.

*   `tf.data`