  else:
      from typing import Literal
  
  logger = logging.getLogger(__name__)  # pylint: disable=invalid-name
  
  _IMAGES: Optional["Images"] = None
  _PREVIEW_TRIGGER: Optional["PreviewTrigger"] = None
  TRAININGPREVIEW = ".gui_training_preview.png"
  
  
  def initialize_images() -> None:
      """ Initialize the :class:`Images` handler  and add to global constant.
 
</s> remove if sys.version_info < (3, 8):
    from typing_extensions import Literal
else:
    from typing import Literal
 </s> add if T.TYPE_CHECKING:
    from collections.abc import Sequence </s> remove if sys.version_info < (3, 8):
    from typing_extensions import get_args, Literal
else:
    from typing import get_args, Literal

 </s> add  </s> remove _NAMES: T.Dict[str, int] = {}
 </s> add _NAMES: dict[str, int] = {} </s> remove if sys.version_info < (3, 8):
    from typing_extensions import Literal
else:
    from typing import Literal


 </s> add  </s> remove if sys.version_info < (3, 8):
    from typing_extensions import get_args, Literal
else:
    from typing import get_args, Literal

 </s> add 
_IMAGES: "Images" | None = None
_PREVIEW_TRIGGER: "PreviewTrigger" | None = None
  else:
      from typing import Literal
  
  logger = logging.getLogger(__name__)  # pylint: disable=invalid-name
_IMAGES: "Images" | None = None
_PREVIEW_TRIGGER: "PreviewTrigger" | None = None
_IMAGES: "Images" | None = None
_PREVIEW_TRIGGER: "PreviewTrigger" | None = None
_IMAGES: "Images" | None = None
_PREVIEW_TRIGGER: "PreviewTrigger" | None = None
  TRAININGPREVIEW = ".gui_training_preview.png"
  
  
  def initialize_images() -> None:
      """ Initialize the :class:`Images` handler  and add to global constant.
keep keep keep keep replace replace replace keep keep keep keep keep
 Rebase code (#1326)

* Remove tensorflow_probability requirement

* setup.py - fix progress bars

* requirements.txt: Remove pre python 3.9 packages

* update apple requirements.txt

* update INSTALL.md

* Remove python<3.9 code

* setup.py - fix Windows Installer

* typing: python3.9 compliant

* Update pytest and readthedocs python versions

* typing fixes

* Python Version updates
  - Reduce max version to 3.10
  - Default to 3.10 in installers
  - Remove incompatible 3.11 tests

* Update dependencies

* Downgrade imageio dep for Windows

* typing: merge optional unions and fixes

* Updates
  - min python version 3.10
  - typing to python 3.10 spec
  - remove pre-tf2.10 code
  - Add conda tests

* train: re-enable optimizer saving

* Update dockerfiles

* Update setup.py
  - Apple Conda deps to setup.py
  - Better Cuda + dependency handling

* bugfix: Patch logging to prevent Autograph errors

* Update dockerfiles

* Setup.py - Setup.py - stdout to utf-8

* Add more OSes to github Actions

* suppress mac-os end to end test 
lib/gui/utils/image.py