  
  import cv2
  
  from lib.gpu_stats import GPUStats
  from lib.queue_manager import queue_manager, QueueEmpty
  from lib.utils import get_backend
  from plugins.plugin_loader import PluginLoader
  
  if sys.version_info < (3, 8):
      from typing_extensions import Literal
 
</s> remove from typing import cast, List, Optional, Tuple, TYPE_CHECKING
 </s> add from typing import cast, Dict, Generator, List, Optional, Tuple, TYPE_CHECKING, Union </s> remove from tensorflow.python.framework import errors_impl as tf_errors
 </s> add from tensorflow.python.framework import errors_impl as tf_errors  # pylint:disable=no-name-in-module  # noqa </s> remove from lib.utils import get_folder
 </s> add from lib.utils import get_folder, _video_extensions </s> remove if TYPE_CHECKING:
    import argparse

 </s> add 
from lib.queue_manager import EventQueue, queue_manager, QueueEmpty
  
  import cv2
  
  from lib.gpu_stats import GPUStats
from lib.queue_manager import EventQueue, queue_manager, QueueEmpty
  from lib.utils import get_backend
  from plugins.plugin_loader import PluginLoader
  
  if sys.version_info < (3, 8):
      from typing_extensions import Literal
keep keep keep keep replace keep keep keep keep keep
 extract: Add batch processing mode 
plugins/extract/pipeline.py