      def __init__(self, save_variable: tk.BooleanVar, is_standalone: bool) -> None:
          logger.debug("Initializing %s: (save_variable: %s, is_standalone: %s)",
                       self.__class__.__name__, save_variable, is_standalone)
          self._is_standalone = is_standalone
          self._source: Optional["np.ndarray"] = None
          self._display: Optional[ImageTk.PhotoImage] = None
          self._scale = 1.0
          self._interpolation = cv2.INTER_NEAREST
  
          self._save_var = save_variable
          self._save_var.trace("w", self.save_preview)
 
</s> remove         self._display: Optional[PreviewTk] = None
 </s> add         self._display: PreviewTk | None = None </s> remove                  screen_dimensions: Tuple[int, int],
 </s> add                  screen_dimensions: tuple[int, int], </s> remove         self._filter: T.Optional[np.ndarray] = None
        self._nfilter: T.Optional[np.ndarray] = None
 </s> add         self._filter: np.ndarray | None = None
        self._nfilter: np.ndarray | None = None </s> remove         self._image: Optional[ImageTk.PhotoImage] = None
 </s> add         self._image: ImageTk.PhotoImage | None = None </s> remove                  aligned_filenames: Optional[List[str]] = None) -> None:
 </s> add                  aligned_filenames: list[str] | None = None) -> None:
        self._source: np.ndarray | None = None
        self._display: ImageTk.PhotoImage | None = None
      def __init__(self, save_variable: tk.BooleanVar, is_standalone: bool) -> None:
          logger.debug("Initializing %s: (save_variable: %s, is_standalone: %s)",
                       self.__class__.__name__, save_variable, is_standalone)
          self._is_standalone = is_standalone
        self._source: np.ndarray | None = None
        self._display: ImageTk.PhotoImage | None = None
        self._source: np.ndarray | None = None
        self._display: ImageTk.PhotoImage | None = None
          self._scale = 1.0
          self._interpolation = cv2.INTER_NEAREST
  
          self._save_var = save_variable
          self._save_var.trace("w", self.save_preview)
keep keep keep keep 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/training/preview_tk.py