code: def processEvents(self):
      pass
  
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 2 for calling the QApplication obj's underlying member method code with example usage: obj.processEvents() without return types