TfLiteRegistration* Register_CONVOLUTION_MULTITHREADED_OPT() {
  static TfLiteRegistration r = {conv::Init, conv::Free,
                                 conv::Prepare<conv::kMultithreadOptimized>,
                                 conv::Eval<conv::kMultithreadOptimized>};
  return &r;
}
TfLiteRegistration* Register_CONVOLUTION_MULTITHREADED_OPT() {
  static TfLiteRegistration r = {conv::Init, conv::Free,
                                 conv::Prepare<conv::kMultithreadOptimized>,
                                 conv::Eval<conv::kMultithreadOptimized>};
  return &r;
}