_optimize_pipeline does not return

[Chimrod]

I think there is missing line in _optimize_pipeline, the function does not return anything, so the code

    def optimize_pipeline(self) -> None:
        """
        Optimizes the current model pipeline.
        """

        self.pipeline = self._optimize_pipeline(self.pipeline)

is actually setting self.pipeline to None.

[DealsBeam]

Just use Intel AI Playground