code: def test_depth_ball_sampling():
      img, *_ = data_gen.generate_mni_space_img()
      mesh = surface.load_surf_mesh(
          datasets.fetch_surf_fsaverage()["pial_left"]
      )
      with pytest.raises(ValueError, match=".*does not support.*"):
          surface.vol_to_surf(img, mesh, kind="ball", depth=[0.5])
  
imports: import os
  import tempfile
  import warnings
  import nibabel
  import numpy
  import pytest
  from nibabel import gifti
  from numpy.testing import assert_array_almost_equal, assert_array_equal
  from scipy.spatial import Delaunay
  from scipy.stats import pearsonr
  from nilearn import datasets, image
  from nilearn._utils import data_gen
  from nilearn.image import resampling
  from nilearn.surface import Mesh, Surface, load_surf_data, load_surf_mesh, surface
  from nilearn.surface.surface import _gifti_img_to_mesh, _load_surf_files_gifti_gzip
  from nilearn.surface.tests._testing import flat_mesh, generate_surf, z_const_img
label_desc: Use image node_id 24 for calling a global function with example usage: test_depth_ball_sampling() without return types