          logger.debug("Overlayed foreground. Shape: %s", backgrounds.shape)
          return backgrounds
  
      @classmethod
      def _get_headers(cls, side: Literal["a", "b"], width: int) -> np.ndarray:
          """ Set header row for the final preview frame
  
          Parameters
          ----------
          side: {"a" or "b"}
 
</s> remove                        side: Literal["a", "b"],
                       samples: T.List[np.ndarray],
                       predictions: T.List[np.ndarray]) -> T.List[np.ndarray]:
 </s> add                        side: T.Literal["a", "b"],
                       samples: list[np.ndarray],
                       predictions: list[np.ndarray]) -> list[np.ndarray]: </s> remove                        side: Literal["a", "b"],
 </s> add                        side: T.Literal["a", "b"], </s> remove                       side: Literal["a", "b"],
 </s> add                       side: T.Literal["a", "b"], </s> remove                       color: T.Tuple[float, float, float]) -> np.ndarray:
 </s> add                       color: tuple[float, float, float]) -> np.ndarray: </s> remove                         batch_size: T.Optional[int] = None,
                        images: T.Optional[T.List[str]] = None) -> DataGenerator:
 </s> add                         batch_size: int | None = None,
                        images: list[str] | None = None) -> DataGenerator:
    def _get_headers(cls, side: T.Literal["a", "b"], width: int) -> np.ndarray:
          logger.debug("Overlayed foreground. Shape: %s", backgrounds.shape)
          return backgrounds
  
      @classmethod
    def _get_headers(cls, side: T.Literal["a", "b"], width: int) -> np.ndarray:
          """ Set header row for the final preview frame
  
          Parameters
          ----------
          side: {"a" or "b"}
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/trainer/_base.py