code: def test_first_frame_transparency():
      with Image.open(
          "Tests/images/first_frame_transparency.gif"
      ) as im:
          px = im.load()
          assert px[0, 0] == im.info["transparency"]
  
imports: from io import BytesIO
  import pytest
  from PIL import GifImagePlugin, Image, ImageDraw, ImagePalette, features
  from .helper import assert_image_equal, assert_image_equal_tofile, assert_image_similar, hopper, is_pypy, netpbm_available
label_desc: Use image node_id 23 for calling a global function with example usage: test_first_frame_transparency() without return types