code: def test_fetch_bids_langloc_dataset(tmp_path):
      data_dir = str(tmp_path / "bids_langloc_example")
      os.mkdir(data_dir)
      main_folder = os.path.join(data_dir, "bids_langloc_dataset")
      os.mkdir(main_folder)
  
      datadir, dl_files = func.fetch_bids_langloc_dataset(tmp_path)
  
      assert isinstance(datadir, str)
      assert isinstance(dl_files, list)
  
imports: import json
  import os
  import re
  import shutil
  import tempfile
  import uuid
  from collections import OrderedDict
  from pathlib import Path
  import nibabel
  import numpy
  import pandas
  import pytest
  from nilearn.datasets import func
  from nilearn.datasets._utils import get_dataset_dir
  from nilearn.datasets.tests._testing import dict_to_archive, list_to_archive
  from nilearn.image import load_img
label_desc: Use image node_id 28 for calling a global function with example usage: test_fetch_bids_langloc_dataset(tmp_path) without return types