tensor_names->insert(coo_sparse.indices_tensor_name());
    tensor_names->insert(coo_sparse.dense_shape_tensor_name());
  } else if (tensor_info.has_composite_tensor()) {
    for (const auto& component : tensor_info.composite_tensor().components()) {
      tensor_names->insert(component.name());
    }
  } else {
    tensor_names->insert(tensor_info.name());
  }
}

        of words which may include previously unseen words (the embedding
        vectors for unseen words will be randomly initialized).

*   `tf.Variable`:

    *   Added `CompositeTensor` as a baseclass to `ResourceVariable`. This
        allows `tf.Variable`s to be nested in `tf.experimental.ExtensionType`s.
    *   Added a new constructor argument `experimental_enable_variable_lifting`