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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 dump(self):
 """ Dump topology to disk """

        try:
            topo = project_to_topology(self)
            path = self._topology_file()
            log.debug("Write %s", path)
            with open(path + ".tmp", "w+", encoding="utf-8") as f:
                json.dump(topo, f, indent=4, sort_keys=True)
            shutil.move(path + ".tmp", path)
        except OSError as e:
            raise aiohttp.web.HTTPInternalServerError(text="Could not write topology: {}".format(e))