code: def test_seek():
      with Image.open(animated_test_file) as im:
          im.seek(50)
  
          assert_image_equal_tofile(im, "Tests/images/a_fli.png")
  
file_path: pillow/Tests/test_file_fli.py
imports: from __future__ import annotations
  import warnings
  import pytest
  from PIL import FliImagePlugin, Image
  from .helper import assert_image_equal, assert_image_equal_tofile, is_pypy
label_desc: Use image node_id 12 for calling a global function with example usage: test_seek() without return types