code: def test_ne(self):
      # Arrange
      im1 = Image.new("RGB", (25, 25), "black")
      im2 = Image.new("RGB", (25, 25), "white")
  
      # Act / Assert
      assert im1 != im2
  
imports: import io
  import os
  import shutil
  import sys
  import tempfile
  import pytest
  from PIL import Image, ImageDraw, ImagePalette, UnidentifiedImageError
  from .helper import assert_image_equal, assert_image_equal_tofile, assert_image_similar_tofile, assert_not_all_same, hopper, is_win32, mark_if_feature_version, skip_unless_feature
label_desc: Use image node_id 24 for calling the TestImage obj's underlying member method code with example usage: obj.test_ne() without return types