%3 = "tf.TensorSliceDataset"(%2) {device = "", output_shapes = [#tf_type.shape<>], metadata = ""} : (tensor<3xi32>) -> tensor<*x!tf_type.variant>
  // CHECK: "tf.MapAndBatchDataset"(%[[TSLICE]], %[[BSIZE:.*]], %[[NPC]]
  // CHECK-SAME: f = @"__inference_Dataset_map_<lambda>_80",
  %4 = "tf.MapDataset"(%3) {device = "",
           f = @"__inference_Dataset_map_<lambda>_80",
           output_shapes = [#tf_type.shape<>], output_types = [i32],

    %drop_remainder: i1 {tfr.name="drop_remainder"},
    %f: !tfr.attr {tfr.name="func"},
    %output_types: !tfr.attr {tfr.name="output_types"},
    %output_shapes: !tfr.attr {tfr.name="output_shapes"},
    %preserve_cardinality: i1 {tfr.name="preserve_cardinality", tfr.default=false}) -> !tfr.tensor {
  %batch = "tfr.constant_tensor"(%batch_size) : (i64) -> tensor<i64>

  } : (tensor<!tf_type.variant>) -> tensor<!tf_type.variant>

  func.return %0 : tensor<!tf_type.variant>
// CHECK: "tf.MapDataset"(
// CHECK-SAME: <{f = @{{.*}}, metadata = "", output_shapes = [#tf_type.shape<>], output_types = [!tf_type.string], preserve_cardinality = true, use_inter_op_parallelism = true}> {Targuments = []}
}

// CHECK-LABEL: TfTakeWhileDataset

def FuseMapAndBatch : Pat<
  (TF_BatchDatasetV2Op
     (TF_MapDatasetOp $input_dataset, $other_arguments, $f, $output_types,
        $output_shapes, $use_inter_op_parallelism, $preserve_cardinality,
        $force_synchronous, $map_dataset_metadata),
     $batch_size, $drop_remainder, $parallel_copy, $batch_output_types,

  // expected-remark@below {{Result #0, ID 0 : 0, 1}}
  %iter_handle1 = "tf.IteratorV2"() {container = "c", shared_name = "v0", output_shapes = [#tf_type.shape<>], output_types = [!tf_res]} : () -> !tf_res
  // expected-remark@below {{Result #0, ID 1 : 0, 1}}
  %iter_handle2 = "tf.IteratorV2"() {container = "c", shared_name = "v1", output_shapes = [#tf_type.shape<>], output_types = [!tf_res]} : () -> !tf_res
  func.return
}

// -----

    std::vector<PartialTensorShape> output_shapes;
    std::transform(iter.second.begin(), iter.second.end(),
                   std::back_inserter(output_shapes),
                   [](const InferredShape& inferred_shape) {
                     return inferred_shape.shape;
                   });
    Node* n = node_name_index[iter.first];
    n->AddAttr(kXlaInferredShapesAttrName, output_shapes);
  }

  return absl::OkStatus();

  %17 = "tf.If"(%2, %2, %13, %13) {_lower_using_switch_merge = true, _read_only_resource_inputs = [], device = "", else_branch = @WhitespaceTokenize_RaggedConcat_assert_equal_1_Assert_AssertGuard_false_3210, is_stateless = false, output_shapes = [#tf_type.shape<>], then_branch = @WhitespaceTokenize_RaggedConcat_assert_equal_1_Assert_AssertGuard_true_3200} : (tensor<i1>, tensor<i1>, tensor<i64>, tensor<i64>) -> tensor<i1>

      end++;
    if (begin != end) {
      mlir::TF::ResultShapeRange output_shapes = {
          mlir::TF::ResultShapeIterator(begin),
          mlir::TF::ResultShapeIterator(end)};
      SetShapeAttribute("_output_shapes", output_shapes, attributes);
    }
  }

  return absl::OkStatus();
}

  %cst = "tf.Const"() <{value = dense<1> : tensor<i32>}> {device = ""} : () -> tensor<i32>
  %0 = "tf.MultiDeviceIteratorFromStringHandle"(%arg0) <{output_shapes = [#tf_type.shape<>], output_types = [!tf_type.string]}> {device = ""} : (tensor<!tf_type.string>) -> tensor<!tf_type.resource>

      device = "/job:tpu_host_worker/replica:0/task:0/device:CPU:0",
      finalize_func = @finalize,
      init_func = @init,
      next_func = @next,
      operandSegmentSizes = array<i32: 1, 2, 1>,
      output_shapes = [#tf_type.shape<>],
      output_types = [!tf_type.string],
      metadata = ""} : (
              tensor<4xf32>,
              tensor<3xf32>,
              tensor<!tf_type.resource>,