func.func @testUnimplementedOp() -> (tensor<i32>, tensor<i32>) {
  %0 = arith.constant dense<1> : tensor<i32>
  %1 = arith.constant dense<2> : tensor<i32>
  %2 = "tf.Maximum"(%0, %1) {_output_shapes = ["tfshape$"]} : (tensor<i32>, tensor<i32>) -> tensor<i32>
  %3 = "tf.Minimum"(%0, %1) {random_attr = "hello"} : (tensor<i32>, tensor<i32>) -> tensor<i32>
  func.return %2, %3: tensor<i32>, tensor<i32>

  %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],

  SmallVector<int64_t, 2> output_shape{1, mlir::ShapedType::kDynamic};
  EXPECT_EQ(mlir::cast<RankedTensorType>(output_types[0]).getShape().size(),
            output_shape.size());
  for (int i = 0; i < output_shape.size(); i++) {
    EXPECT_EQ(mlir::cast<RankedTensorType>(output_types[0]).getDimSize(i),
              output_shape[i]);
  }
}

    %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>

  std::array<int64_t, 4> output_shape;
  // NHWC <- NCHW
  output_shape[0] = composite_result_shape[0];
  output_shape[1] = composite_result_shape[2];
  output_shape[2] = composite_result_shape[3];
  output_shape[3] = composite_result_shape[1];

  auto input_type = mlir::cast<ShapedType>(old_op->getOperand(0).getType());

  return RankedTensorType::get(output_shape, input_type.getElementType());
}

// Transpose conv supports hybrid computation with quantized weights.
def FoldQuantWeightsIntoTposeConv : Pat<
  (TFL_TransposeConvOp
    $output_shape,
    (TFL_DequantizeOp $quant_weights),
    $quant_input,
    $bias, $padding, $stride_h, $stride_w, $faf),
  (TFL_TransposeConvOp $output_shape, $quant_weights,
    $quant_input, $bias, $padding, $stride_h, $stride_w, $faf), 

  PartialTensorShape output_shape =
      ConvertTypeToTensorShape(mlir::UnrankedTensorType::get(b.getF32Type()));
  EXPECT_TRUE(output_shape.IsIdenticalTo(PartialTensorShape()));
}

TEST(ConvertTypeToTensorTypeTest, NonFullyDefinedRankedTensorType) {
  mlir::MLIRContext context;
  RegisterDialects(context);
  mlir::Builder b(&context);

  PartialTensorShape output_shape = ConvertTypeToTensorShape(

  } : (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,

    return failure();

  // Build the lstm op.
  SmallVector<int64_t, 3> output_shape;
  if (time_majored) {
    output_shape = {time, batch, n_output};
  } else {
    output_shape = {batch, time, n_output};
  }
  auto result_type = mlir::RankedTensorType::get(
      output_shape,
      mlir::cast<RankedTensorType>(final_inputs.getType()).getElementType());