code: def test_widget_abstraction_pyvistaqt(renderer_pyvistaqt):
      """Test the GUI widgets abstraction."""
      backend = _get_backend()
      assert Path(backend.__file__).stem == "_qt"
      _do_widget_tests(backend)
  
imports: from pathlib import Path
  from mne.viz.backends.renderer import _get_backend
  from mne.viz.backends.tests._utils import skips_if_not_pyvistaqt
label_desc: Use image node_id 2 for calling a global function with example usage: test_widget_abstraction_pyvistaqt(renderer_pyvistaqt) without return types