// Skip non-quantizable results.
    if (quant_params) {
      collected_quant_params.push_back(quant_params);
    }
  }

  if (collected_quant_params.size() <= 1) return success();
  const auto& expected_params = collected_quant_params[0];
  for (int i = 1; i < collected_quant_params.size(); ++i) {
    const auto& compared_params = collected_quant_params[i];