code: def test_fetch_atlas_yeo_2011(tmp_path, request_mocker):
      dataset = atlas.fetch_atlas_yeo_2011(data_dir=tmp_path, verbose=0)
  
      assert isinstance(dataset.anat, str)
      assert isinstance(dataset.colors_17, str)
      assert isinstance(dataset.colors_7, str)
      assert isinstance(dataset.thick_17, str)
      assert isinstance(dataset.thick_7, str)
      assert isinstance(dataset.thin_17, str)
      assert isinstance(dataset.thin_7, str)
      assert request_mocker.url_count == 1
      assert dataset.description != ""
  
imports: import itertools
  import os
  import re
  from pathlib import Path
  import nibabel
  import numpy
  import pandas
  import pytest
  from numpy.testing import assert_array_equal
  from nilearn._utils import data_gen
  from nilearn._utils.testing import serialize_niimg
  from nilearn.conftest import _rng
  from nilearn.datasets import atlas
  from nilearn.datasets._utils import fetch_files
  from nilearn.datasets.tests._testing import dict_to_archive
  from nilearn.image import get_data
label_desc: Use image node_id 16 for calling a global function with example usage: test_fetch_atlas_yeo_2011(tmp_path, request_mocker) without return types