return Device::BuildDeviceAttributes(
      absl::StrCat(name_prefix, "/device:", device_name, ":", device_ordinal),
      DeviceType(device_name), Bytes(16ULL << 30), DeviceLocality(),
      absl::StrCat("device: ", device_name, " device"));
}

}  // namespace

PjRtBaseDevice::PjRtBaseDevice(const SessionOptions& session_options,
                               const Options& options)

  const DeviceAttributes attrs = Device::BuildDeviceAttributes(
      absl::StrCat(name_prefix, "/device:", DEVICE_TPU_SYSTEM, ":", 0),
      DeviceType(DEVICE_TPU_SYSTEM), Bytes(memory_limit), DeviceLocality(),
      absl::StrCat("device: ", DEVICE_TPU_SYSTEM, " device"));
  devices->push_back(std::make_unique<VirtualDevice>(options.env, attrs));
  VLOG(1) << "Created TPU_SYSTEM device. This host has " << device_count

  return Device::BuildDeviceAttributes(
      absl::StrCat(name_prefix, "/device:", device_name, ":", device_ordinal),
      DeviceType(device_name), Bytes(16ULL << 30), DeviceLocality(),
      absl::StrCat("device: ", device_name, " device"));
}

}  // namespace

XlaDevice::Metadata::Metadata(
    int device_ordinal, se::Platform* platform, const DeviceType& device_type,

*   Visualization of embeddings in TensorBoard.

## Breaking Changes to the API

*   `BusAdjacency` enum replaced with a protocol buffer `DeviceLocality`. PCI
    bus indexing now starts from 1 instead of 0, and `bus_id==0` is used where
    previously `BUS_ANY` was used.
*   `Env::FileExists` and `FileSystem::FileExists` now return a