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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 cropbox(self, image, geometry, options):
 """ Wrapper for ``_cropbox`` """

        cropbox = options['cropbox']
        if not cropbox:
            return image
        x, y, x2, y2 = parse_cropbox(cropbox)
        return self._cropbox(image, x, y, x2, y2)