code: def test_no_name(tmp_path, name):
      """Verify that None or empty name works."""
      logger = CSVLogger(save_dir=tmp_path, name=name)
      logger.save()
      assert os.path.normpath(logger.root_dir) == str(
          tmp_path
      )  # use os.path.normpath to handle trailing /
      assert os.listdir(tmp_path / "version_0")
  
imports: import os
  from unittest.mock import MagicMock
  import fsspec
  import pytest
  import torch
  from lightning.pytorch import Trainer
  from lightning.pytorch.core.saving import load_hparams_from_yaml
  from lightning.pytorch.loggers import CSVLogger
  from lightning.pytorch.loggers.csv_logs import ExperimentWriter
  from tests_pytorch.helpers.datamodules import ClassifDataModule
  from tests_pytorch.helpers.runif import RunIf
  from tests_pytorch.helpers.simple_models import ClassificationModel
label_desc: Use image node_id 4 for calling a global function with example usage: test_no_name(tmp_path, name) without return types