OpDef op_def;
  op_def.ParseFromString(data);
  EXPECT_EQ(op_def.name(), func_name_);
  EXPECT_EQ(op_def.input_arg_size(), 1);
  EXPECT_EQ(op_def.output_arg_size(), 1);
  EXPECT_FALSE(op_def.is_stateful());

  TF_DeleteBuffer(buffer);
}

void DefineStatefulFunction(const char* name, TF_Function** func) {
  std::unique_ptr<TF_Graph, decltype(&TF_DeleteGraph)> func_graph(

                                "Invalid text proto for ServerDef"));
  EXPECT_EQ(null_result, nullptr);

  // Cleanup
  TF_DeleteBuffer(result);
  TF_DeleteStatus(status);
}

TEST(CAPI_EXPERIMENTAL, IsStateful) {
  std::unique_ptr<TF_Status, decltype(&TF_DeleteStatus)> status(
      TF_NewStatus(), TF_DeleteStatus);
  int assign = TF_OpIsStateful("AssignAddVariableOp", status.get());

        `IteratorBase::SaveInternal`, and `DatasetBase::CheckExternalState`
        become pure-virtual and subclasses are now expected to provide an
        implementation.
    *   The deprecated `DatasetBase::IsStateful` method is removed in favor of
        `DatasetBase::CheckExternalState`.
    *   Deprecated overrides of `DatasetBase::MakeIterator` and
        `MakeIteratorFromInputElement` are removed.