code: def setUp(self):
      (
          self.folder_path,
          self.sample_names,
      ) = self.create_dataset_no_subdir(10)
      with initialize(
          config_path="../../lightly/cli/config", job_name="test_app"
      ):
          self.cfg = compose(
              config_name="config",
              overrides=[
                  'token="123"',
                  f"input_dir={self.folder_path}",
                  "trainer.max_epochs=0",
              ],
          )
  
file_path: lightly/tests/embedding/test_embedding.py
imports: import os
  import tempfile
  import unittest
  from typing import List, Tuple
  import numpy
  import torch
  import torchvision
  from hydra.experimental import compose, initialize
  from torch import manual_seed
  from torch.utils.data import DataLoader
  from lightly.cli._helpers import get_model_from_config
  from lightly.data import LightlyDataset
label_desc: Use image node_id 1 for calling the TestLightlyDataset obj's underlying member method code with example usage: obj.setUp() without return types