code: def test_large_count(tmp_path):
      im = Image.new("L", (256, 1))
      px = im.load()
      for x in range(256):
          px[x, 0] = x // 67 * 67
      _roundtrip(tmp_path, im)
  
file_path: pillow-simd/Tests/test_file_pcx.py
imports: import pytest
  from PIL import Image, ImageFile, PcxImagePlugin
  from .helper import assert_image_equal, hopper
label_desc: Use image node_id 8 for calling a global function with example usage: test_large_count(tmp_path) without return types