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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 generate_image(self, chars):
 """Generate the image of the given characters. :param chars: text to be generated. """

        background = random_color(238, 255)
        color = random_color(10, 200, random.randint(220, 255))
        im = self.create_captcha_image(chars, color, background)
        self.create_noise_dots(im, color)
        self.create_noise_curve(im, color)
        im = im.filter(ImageFilter.SMOOTH)
        return im