code: def test_sanity():
      with Image.open(TEST_ICO_FILE) as im:
          im.load()
      assert im.mode == "RGBA"
      assert im.size == (16, 16)
      assert im.format == "ICO"
      assert im.get_format_mimetype() == "image/x-icon"
  
imports: from __future__ import annotations
  import io
  import os
  import pytest
  from PIL import IcoImagePlugin, Image, ImageDraw
  from .helper import assert_image_equal, assert_image_equal_tofile, hopper
label_desc: Use image node_id 1 for calling a global function with example usage: test_sanity() without return types