  #!/usr/bin python3
  """ Settings manager for Keras Backend """
  
  from contextlib import nullcontext
  import logging
  from typing import Callable, ContextManager, List, Optional, Union
  
  import numpy as np
 
</s> remove from typing import Callable, ContextManager, List, Optional, Union
 </s> add import typing as T </s> remove import sys
 </s> add import typing as T </s> remove import sys
 </s> add import typing as T </s> remove from typing import Callable, cast, List, Optional, Tuple, TYPE_CHECKING, Union
 </s> add  </s> remove 
from typing import Dict, List, Optional, TYPE_CHECKING, Union
 </s> add import typing as T
from __future__ import annotations
  #!/usr/bin python3
  """ Settings manager for Keras Backend """
from __future__ import annotations
  from contextlib import nullcontext
  import logging
  from typing import Callable, ContextManager, List, Optional, Union
  
  import numpy as np
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/model/session.py