code: def configure_optimizers(self) -> SGD:
      return SGD(self.parameters(), lr=0.1)
  
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 4 for calling the _DummyModule obj's underlying member method code with example usage: obj.configure_optimizers() and returns: SGD