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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 circles_pil(width, height, color):
 """ Implementation of circle border with PIL. """


    image = Image.new("RGBA", (width, height), color=None)
    draw = ImageDraw.Draw(image)
    draw.ellipse((0, 0, width - 1, height - 1), fill=color)
    image.save('circles.png')