          """
          return os.path.isfile(self._filename)
  
      @property
      def history(self) -> T.List[T.List[float]]:
          """ list: list of loss histories per side for the current save iteration. """
          return self._history
  
      @property
      def multiple_models_in_folder(self) -> T.Optional[T.List[str]]:
 
</s> remove     def multiple_models_in_folder(self) -> T.Optional[T.List[str]]:
 </s> add     def multiple_models_in_folder(self) -> list[str] | None: </s> remove     def loss_names(self) -> T.List[str]:
 </s> add     def loss_names(self) -> list[str]: </s> remove     def names(self) -> T.List[str]:
 </s> add     def names(self) -> list[str]: </s> remove     def file_list(self) -> List[str]:
 </s> add     def file_list(self) -> list[str]: </s> remove     def to_install_conda(self) -> List[Tuple[str, ...]]:
 </s> add     def to_install_conda(self) -> list[tuple[str, ...]]:
    def history(self) -> list[list[float]]:
          """
          return os.path.isfile(self._filename)
  
      @property
    def history(self) -> list[list[float]]:
          """ list: list of loss histories per side for the current save iteration. """
          return self._history
  
      @property
      def multiple_models_in_folder(self) -> T.Optional[T.List[str]]:
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 
plugins/train/model/_base/io.py