code: def test_grab_x11(self):
      try:
          if sys.platform not in ("win32", "darwin"):
              ImageGrab.grab()
  
          ImageGrab.grab(xdisplay="")
      except OSError as e:
          pytest.skip(str(e))
  
file_path: pillow/Tests/test_imagegrab.py
imports: from __future__ import annotations
  import os
  import shutil
  import subprocess
  import sys
  import pytest
  from PIL import Image, ImageGrab
  from .helper import assert_image_equal_tofile, skip_unless_feature
label_desc: Use image node_id 2 for calling the TestImageGrab obj's underlying member method code with example usage: obj.test_grab_x11() without return types