  
  import logging
  import os
  import sys
  from typing import Any, Dict, Generator, List, Optional, Tuple, TYPE_CHECKING, Union
  
  import cv2
  import numpy as np
  import imageio
  
 
</s> remove from typing import cast, Dict, List, Optional, TYPE_CHECKING, Union
 </s> add from typing import cast, Dict, List, Optional, Tuple, TYPE_CHECKING, Union </s> remove from typing import List, Optional, TYPE_CHECKING
 </s> add from typing import Dict, List, Optional, TYPE_CHECKING </s> remove from lib.align.alignments import _VERSION
 </s> add from lib.align.alignments import _VERSION, PNGHeaderDict </s> remove     from imageio.plugins.pillowmulti import GIFFormat
 </s> add     from imageio.core import format as im_format  # noqa:F401 </s> remove         """ makes sure that the frames or faces folder exists
 </s> add         """ Ensure that the frames or faces folder exists and is valid.
from typing import (Any, cast, Dict, Generator, Iterator, List,
                    Optional, Tuple, TYPE_CHECKING, Union)
  
  import logging
  import os
  import sys
from typing import (Any, cast, Dict, Generator, Iterator, List,
                    Optional, Tuple, TYPE_CHECKING, Union)
  
  import cv2
  import numpy as np
  import imageio
  
keep keep keep keep replace keep keep keep keep keep
 tests:
  - unit test: tools.alignments.media
  - Add mypy test
  - Typing fixes 
scripts/fsmedia.py