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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 prep_image(image, tile_size):
 """Takes an image and a tile size and returns a possibly cropped version of the image that is evenly divisible in both dimensions by the tile size. """

    w, h = image.size
    x_tiles = w / tile_size  # floor division
    y_tiles = h / tile_size
    new_w = x_tiles * tile_size
    new_h = y_tiles * tile_size
    if new_w == w and new_h == h:
        return image
    else:
        crop_bounds = (0, 0, new_w, new_h)
        return image.crop(crop_bounds)