auto device =
        DeviceFactory::NewDevice(device_type.type_string(), SessionOptions(),
                                 "/job:localhost/replica:0/task:0");
    device_ = device.get();
    SetDevice(device_type, std::move(device));

    XlaShapeLayoutHelpers::ShapeDeterminationFns shape_fns{
        UseNoPreferenceLayoutFn(), IdentityShapeRepresentationFn()};
    device_context_ = core::RefCountPtr<DeviceContext>(

    auto device =
        DeviceFactory::NewDevice(device_type.type_string(), SessionOptions(),
                                 "/job:localhost/replica:0/task:0");
    device_ = device.get();
    SetDevice(device_type, std::move(device));

    // Create PjRtClient for XLA_CPU.
    TF_CHECK_OK(SetPjRtClientInTFGlobalResourceManager(
        device_type,

};

#if GOOGLE_CUDA || TENSORFLOW_USE_ROCM
TEST_F(XlaPlatformInfoTest, BuildXlaDeviceCompilerXlaDeviceMetadata) {
  device_setup_.AddDevicesAndSetUp({DEVICE_XLA_GPU});

  Device* device = device_setup_.GetDevice(DEVICE_XLA_GPU);
  const XlaDevice::Metadata* metadata = nullptr;
  TF_CHECK_OK(XlaDevice::GetMetadataFromDevice(device, &metadata));
  XlaPlatformInfo platform_info = XlaPlatformInfoFromDevice(device);

  }

  DeviceSetup device_setup_;
};

TEST_F(XlaCompilerOptionsTest, PjRtOptionsXlaDevice) {
  device_setup_.AddDevicesAndSetUp({DEVICE_XLA_GPU});
  Device* device = device_setup_.GetDevice(DEVICE_XLA_GPU);
  DeviceType compilation_device_type = DeviceType(DEVICE_GPU_XLA_JIT);

  se::Platform::Id platform_id = nullptr;
  auto xla_device_metadata = CreateXlaDeviceMetadata(compilation_device_type);

    rewriter.replaceOp(op_to_replace, ValueRange({fused_op}));
    return success();
  }
};

const char kDeviceAttr[] = "device";
const char kDeviceGpu[] = "GPU";

std::optional<std::string> GetDevice(mlir::Operation *op) {
  mlir::StringAttr device = op->getAttrOfType<mlir::StringAttr>(kDeviceAttr);
  if (!device || device.getValue().empty()) {
    return std::nullopt;
  }

      execute_launch.getLoc(), llvm::ArrayRef<Type>{}, reformat_operands);
  WrapOpInLaunch(&builder, execute_launch.getLoc(), reformat_op,
                 execute_launch.getDevice());

  // Build the replicated unformat op after the loop. First prepare building the
  // replicate op.
  llvm::SmallVector<std::pair<ValueRange, Type>, 8> unformat_replicate_operands;

                            entry.value().get(), &builder);

    auto device_list = mlir::cast<ArrayAttr>(
        replicate.getDevices().value().get(execute_launch.getDevice()));
    copy_with_layout->setAttr(kDeviceAttr,
                              device_list.getValue()[entry.index()]);

    entry.value().set(copy_with_layout);
  }
  return true;
}

    // Map aliased devices to explicit devices based on replica.
    if (auto launch = dyn_cast<tf_device::LaunchOp>(op))
      if (auto device_by_replica = devices.value().get(launch.getDevice()))
        launch->setAttr(
            kDeviceAttr,
            device_by_replica.cast<ArrayAttr>()[replica_id].cast<StringAttr>());

    return WalkResult::advance();
  });