typedef void* (*MyCreateFuncWithAttr)(TF_OpKernelConstruction*);
class TestKernelAttr : public ::testing::Test {
 public:
  TestKernelAttr() {}
  ~TestKernelAttr() override {}

  std::unique_ptr<OpKernel> GetFakeKernelWithAttr(const char* op_name,
                                                  AttrValue v, Status* status) {
    NodeDef def;
    def.set_op(op_name);
    def.set_name("FakeNode");
    def.set_device("FakeDevice");