code: def test_remap_palette(self):
      # Test identity transform
      with Image.open("Tests/images/hopper.gif") as im:
          assert_image_equal(im, im.remap_palette(list(range(256))))
  
      # Test illegal image mode
      with hopper() as im:
          with pytest.raises(ValueError):
              im.remap_palette(None)
  
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 42 for calling the TestImage obj's underlying member method code with example usage: obj.test_remap_palette() without return types