def with_speed_scaled(self, factor: float = None, final_duration: float = None):
        """Returns a clip playing the current clip but at a speed multiplied
        by ``factor``. For info on the parameters, please see ``vfx.MultiplySpeed``.
        """
        from moviepy.video.fx.MultiplySpeed import MultiplySpeed

        return self.with_effects(
            [MultiplySpeed(factor=factor, final_duration=final_duration)]
        )
Returns a clip playing the current clip but at a speed multiplied
        by ``factor``. For info on the parameters, please see ``vfx.MultiplySpeed``.
        
moviepy/Clip.py