, 1 or 3, H, W] format,
            where ... means it can have an arbitrary number of leading dimensions.
        saturation_factor (float):  How much to adjust the saturation. 0 will
            give a black and white image, 1 will give the original image while
            2 will enhance the saturation by a factor of 2.

    Returns:
        PIL Image or Tensor: Saturation adjusted image.
    N)
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