code: def test_ext_imgmockconverter(app, status, warning):
      app.build(force_all=True)
  
      content = (app.outdir / "python.tex").read_text(encoding="utf8")
  
      # check identical basenames give distinct files
      assert "\\sphinxincludegraphics{{svgimg}.pdf}" in content
      assert "\\sphinxincludegraphics{{svgimg1}.pdf}" in content
      assert not (app.outdir / "svgimg.svg").exists()
      assert (app.outdir / "svgimg.pdf").exists()
      assert (app.outdir / "svgimg1.pdf").exists()
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_ext_imgmockconverter(app, status, warning) without return types