          self.backend: Optional[Literal["nvidia", "apple_silicon",
                                         "directml", "cpu", "rocm"]] = None
          self.enable_docker: bool = False
          self.cuda_cudnn = ["", ""]
          self.rocm_version: Tuple[int, ...] = (0, 0, 0)
  
          self._process_arguments()
          self._check_permission()
          self._check_system()
          self._check_python()
 
</s> remove         self.backend: Optional[Literal["nvidia", "apple_silicon",
                                       "directml", "cpu", "rocm"]] = None
 </s> add         self.backend: backend_type | None = None </s> remove         self.rocm_version: Tuple[int, ...] = (0, 0, 0)
 </s> add         self.rocm_version: tuple[int, ...] = (0, 0, 0) </s> remove _TF_VERS: Optional[Tuple[int, int]] = None
ValidBackends = Literal["nvidia", "cpu", "apple_silicon", "directml", "rocm"]
 </s> add _TF_VERS: tuple[int, int] | None = None
ValidBackends = T.Literal["nvidia", "cpu", "apple_silicon", "directml", "rocm"] </s> remove     tf_min: T.Tuple[int, int] = (2, 0)
    scaling: T.Tuple[int, int] = (0, 1)
 </s> add     tf_min: tuple[int, int] = (2, 0)
    scaling: tuple[int, int] = (0, 1) </s> remove         self._backends: Dict[str, ValidBackends] = {"1": "cpu",
 </s> add         self._backends: dict[str, ValidBackends] = {"1": "cpu",
        self.rocm_version: tuple[int, ...] = (0, 0, 0)
          self.backend: Optional[Literal["nvidia", "apple_silicon",
                                         "directml", "cpu", "rocm"]] = None
          self.enable_docker: bool = False
          self.cuda_cudnn = ["", ""]
        self.rocm_version: tuple[int, ...] = (0, 0, 0)
  
          self._process_arguments()
          self._check_permission()
          self._check_system()
          self._check_python()
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 
setup.py