code: def test__cpu(self) -> None:
      self._test(accelerator="cpu")
  
file_path: lightly/tests/utils/benchmarking/test_online_linear_classifier.py
imports: import pytest
  import torch
  from pytorch_lightning import LightningModule, Trainer
  from torch import Tensor, nn
  from torch.optim import SGD
  from torch.utils.data import DataLoader
  from torchvision.datasets import FakeData
  from torchvision.transforms import ToTensor
  from lightly.utils.benchmarking import OnlineLinearClassifier
label_desc: Use image node_id 1 for calling the TestOnlineLinearClassifier obj's underlying member method code with example usage: obj.test__cpu() without return types