TfLiteRegistration* Register_SUB_GENERIC_OPT() {
  static TfLiteRegistration r = {sub::Init, sub::Free, sub::Prepare,
                                 sub::Eval<sub::kGenericOptimized>};
  return &r;
}
TfLiteRegistration* Register_SUB_GENERIC_OPT() {
  static TfLiteRegistration r = {sub::Init, sub::Free, sub::Prepare,
                                 sub::Eval<sub::kGenericOptimized>};
  return &r;
}