code: def check_Conte69(brain_model):
      """Checks that the BrainModelAxis matches the expected Conte69 surface coordinates"""
      assert isinstance(brain_model, cifti2_axes.BrainModelAxis)
      structures = list(brain_model.iter_structures())
      assert len(structures) == 2
      assert structures[0][0] == "CIFTI_STRUCTURE_CORTEX_LEFT"
      assert structures[0][2].surface_mask.all()
      assert structures[1][0] == "CIFTI_STRUCTURE_CORTEX_RIGHT"
      assert structures[1][2].surface_mask.all()
      assert (brain_model.voxel == -1).all()
  
      assert (brain_model.vertex[:5] == np.arange(5)).all()
      assert structures[0][2].vertex[-1] == 32491
      assert structures[1][2].vertex[0] == 0
      assert structures[1][2].vertex[-1] == 32491
  
file_path: nibabel/nibabel/cifti2/tests/test_cifti2io_axes.py
imports: import os
  import tempfile
  import numpy
  import nibabel
  from nibabel.cifti2 import cifti2, cifti2_axes
  from nibabel.tests.nibabel_data import get_nibabel_data, needs_nibabel_data
label_desc: Use image node_id 2 for calling a global function with example usage: check_Conte69(brain_model) without return types