code: def atlas_data():
      # Create false atlas
      atlas_data = np.zeros((10, 10, 10), dtype="int32")
      # Create an interhemispheric map
      atlas_data[:, :2, :] = 1
      # Create a left map
      atlas_data[5:, 7:9, :] = 3
      atlas_data[5:, 3, :] = 2
      # Create a right map, with one voxel on the left side
      atlas_data[:5:, 3:5, :] = 2
      atlas_data[:5, 8, :] = 3
      atlas_data[4, 7, 0] = 3
      return atlas_data
  
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 7 for calling a global function with example usage: atlas_data() and returns: atlas_data