return std::nullopt;
  }
  tflite::UpdateOpVersion(builder_.GetBufferPointer());
  tflite::UpdateMinimumRuntimeVersionForModel(builder_.GetBufferPointer());
  if (supported_backends_.find("GPU") != supported_backends_.end()) {
    if (!CheckGpuDelegateCompatibility(builder_.GetBufferPointer())) {
      return std::nullopt;
    }
  }

  absl::Cord result;