code: def test_namespace_contract():
      assert hasattr(pv, "_get_sg_image_scraper")
  
file_path: pyvista/tests/plotting/test_scraper.py
imports: import os
  import os.path
  from matplotlib.pyplot import imread
  import pytest
  import pyvista
  from pyvista.plotting.utilities.sphinx_gallery import DynamicScraper, Scraper
label_desc: Use image node_id 4 for calling a global function with example usage: test_namespace_contract() without return types