message: Re-enabling a test.
diff: @@ -630,9 +630,7 @@ class BatchDatasetSerializationTest(
  lambda x: array_ops.fill([x], x)).apply(
  batching.dense_to_sparse_batch(4, [12]))
  - # TODO(b/70988345): Re-enable when sparse tensors are properly supported by
  - # the DatasetSerializationTestBase.
  - def _testDenseToSparseBatchDatasetCore(self):
  + def testDenseToSparseBatchDatasetCore(self):
  components = np.random.randint(5, size=(40,)).astype(np.int32)
  diff_comp = np.random.randint(2, size=(100,)).astype(np.int32)
  