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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def resize_image(image, tuple_wh, preserve_aspect=True):
 """Resizes an instance of a PIL Image. In order to prevent un-intended side effects, this function always returns a copy of the image, as the resize function from PIL returns a copy but the thumbnail function does not. Args: image: An instance of a PIL Image. tuple_wh: A tuple containing the (width, height) for resizing. preserve_aspect: A boolean that determines whether or not the resizing should preserve the image's aspect ratio. Returns: A resized copy of the provided PIL image. """


    if preserve_aspect:
        img_cpy = image.copy()
        img_cpy.thumbnail(tuple_wh)
        return img_cpy
    else:
        return image.resize(tuple_wh)