}

absl::StatusOr<std::optional<std::set<int>>> ParseVisibleDeviceList(
    absl::string_view visible_device_list) {
  std::set<int> gpu_ids;
  if (visible_device_list.empty()) {
    return {{std::nullopt}};
  }
  const std::vector<string> visible_devices =
      absl::StrSplit(visible_device_list, ',');
  for (const string& platform_device_id_str : visible_devices) {
    int32_t platform_device_id;