*   Prevents deadlocks arising from mutually recursive `tf.function` objects
    ([CVE-2021-41213](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41213))
*   Fixes a null pointer exception in `DeserializeSparse`
    ([CVE-2021-41215](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41215))
*   Fixes an undefined behavior arising from reference binding to `nullptr` in
    `tf.ragged.cross`

    Arg<TF_VariantTensor, [{A variant tensor storing the state of the iterator contained in the
resource.}]>:$serialized
  );

  let results = (outs);
}

def TF_DeserializeSparseOp : TF_Op<"DeserializeSparse", [Pure]> {
  let summary = "Deserialize `SparseTensor` objects.";

  let description = [{
The input `serialized_sparse` must have the shape `[?, ?, ..., ?, 3]` where