How to use the svglib.svglib.ClippingPath function in svglib

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if not clip_path:
            return
        m = re.match(r'url\(#([^\)]*)\)', clip_path)
        if not m:
            return
        ref = m.groups()[0]
        if ref not in self.definitions:
            logger.warning("Unable to find a clipping path with id %s" % ref)
            return

        shape = get_shape_from_node(self.definitions[ref])
        if isinstance(shape, Rect):
            # It is possible to use a rect as a clipping path in an svg, so we
            # need to convert it to a path for rlg.
            x1, y1, x2, y2 = shape.getBounds()
            cp = ClippingPath()
            cp.moveTo(x1, y1)
            cp.lineTo(x2, y1)
            cp.lineTo(x2, y2)
            cp.lineTo(x1, y2)
            cp.closePath()
            # Copy the styles from the rect to the clipping path.
            copy_shape_properties(shape, cp)
            return cp
        elif isinstance(shape, Path):
            return ClippingPath(copy_from=shape)
        elif shape:
            logging.error("Unsupported shape type %s for clipping" % shape.__class__.__name__)

shape = get_shape_from_node(self.definitions[ref])
        if isinstance(shape, Rect):
            # It is possible to use a rect as a clipping path in an svg, so we
            # need to convert it to a path for rlg.
            x1, y1, x2, y2 = shape.getBounds()
            cp = ClippingPath()
            cp.moveTo(x1, y1)
            cp.lineTo(x2, y1)
            cp.lineTo(x2, y2)
            cp.lineTo(x1, y2)
            cp.closePath()
            # Copy the styles from the rect to the clipping path.
            copy_shape_properties(shape, cp)
            return cp
        elif isinstance(shape, Path):
            return ClippingPath(copy_from=shape)
        elif shape:
            logging.error("Unsupported shape type %s for clipping" % shape.__class__.__name__)