TfLiteRegistration* Register_ADD_N() {
  static TfLiteRegistration r = {/*init*/ nullptr, /*free*/ nullptr,
                                 add_n::Prepare, add_n::Eval};
  return &r;
}
TfLiteRegistration* Register_ADD_N() {
  static TfLiteRegistration r = {  nullptr,   nullptr,
                                 add_n::Prepare, add_n::Eval};
  return &r;
}