      """
      def __init__(self,
                   parent: tk.Frame,
                   scale_var: tk.StringVar,
                   screen_dimensions: Tuple[int, int],
                   is_standalone: bool) -> None:
          logger.debug("Initializing %s (parent: '%s', scale_var: %s, screen_dimensions: %s)",
                       self.__class__.__name__, parent, scale_var, screen_dimensions)
          frame = tk.Frame(parent)
          super().__init__(frame)
 
</s> remove         self._gui_mapped: List[tk.Widget] = []
 </s> add         self._gui_mapped: list[tk.Widget] = [] </s> remove     def __init__(self, parent: tk.Frame, taskbar: Optional[ttk.Frame]) -> None:
 </s> add     def __init__(self, parent: tk.Frame, taskbar: ttk.Frame | None) -> None: </s> remove         self._source: Optional["np.ndarray"] = None
        self._display: Optional[ImageTk.PhotoImage] = None
 </s> add         self._source: np.ndarray | None = None
        self._display: ImageTk.PhotoImage | None = None </s> remove     def __init__(self, app: 'Preview', parent: ttk.Frame) -> None:
 </s> add     def __init__(self, app: Preview, parent: ttk.Frame) -> None: </s> remove     def __init__(self, app: 'Preview', parent: ttk.PanedWindow) -> None:
 </s> add     def __init__(self, app: Preview, parent: ttk.PanedWindow) -> None:
                 screen_dimensions: tuple[int, int],
      """
      def __init__(self,
                   parent: tk.Frame,
                   scale_var: tk.StringVar,
                 screen_dimensions: tuple[int, int],
                   is_standalone: bool) -> None:
          logger.debug("Initializing %s (parent: '%s', scale_var: %s, screen_dimensions: %s)",
                       self.__class__.__name__, parent, scale_var, screen_dimensions)
          frame = tk.Frame(parent)
          super().__init__(frame)
keep keep keep keep 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