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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 create_region_from_border_clip(self, onerror = None):
 """Create a region of the border clip of the window, i.e. the area that is not clipped by the parent and any sibling windows. """


    rid = self.display.allocate_resource_id()
    CreateRegionFromBorderClip(
        display = self.display,
        onerror = onerror,
        opcode = self.display.get_extension_major(extname),
        region = rid,
        window = self,
        )

    # FIXME: create Region object and return it
    return rid