code: def test_transparent_colors_equal():
      im = Image.new("RGBA", (1, 2), (0, 0, 0, 0))
      px = im.load()
      px[0, 1] = (255, 255, 255, 0)
  
      converted = im.quantize()
      converted_px = converted.load()
      assert converted_px[0, 0] == converted_px[0, 1]
  
file_path: pillow/Tests/test_image_quantize.py
imports: from __future__ import annotations
  import pytest
  from packaging.version import parse
  from PIL import Image, features
  from .helper import assert_image_similar, hopper, is_ppc64le, skip_unless_feature
label_desc: Use image node_id 10 for calling a global function with example usage: test_transparent_colors_equal() without return types