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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 close(self):
 """ Closes this IOU VM. """


        if not (yield from super().close()):
            return False

        adapters = self._ethernet_adapters + self._serial_adapters
        for adapter in adapters:
            if adapter is not None:
                for nio in adapter.ports.values():
                    if nio and isinstance(nio, NIOUDP):
                        self.manager.port_manager.release_udp_port(nio.lport, self._project)

        yield from self.stop()