TfLiteRegistration* Register_MUL_REF() {
  static TfLiteRegistration r = {mul::Init, mul::Free, mul::Prepare,
                                 mul::Eval<mul::kReference>};
  return &r;
}
TfLiteRegistration* Register_MUL_REF() {
  static TfLiteRegistration r = {mul::Init, mul::Free, mul::Prepare,
                                 mul::Eval<mul::kReference>};
  return &r;
}