code: def test_sanity():
      with Image.open(TEST_FILE) as im:
          assert im.size == (32, 32)
          assert isinstance(im, CurImagePlugin.CurImageFile)
          # Check some pixel colors to ensure image is loaded properly
          assert im.getpixel((10, 1)) == (0, 0, 0, 0)
          assert im.getpixel((11, 1)) == (253, 254, 254, 1)
          assert im.getpixel((16, 16)) == (84, 87, 86, 255)
  
imports: from __future__ import annotations
  import pytest
  from PIL import CurImagePlugin, Image
label_desc: Use image node_id 1 for calling a global function with example usage: test_sanity() without return types