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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:
 async def sleep(self, sleep_time):
 """ This method is a proxy method for asyncio.sleep :param sleep_time: Sleep interval in seconds :returns: No return value. """

        try:
            await asyncio.sleep(sleep_time)
        except RuntimeError:
            if self.log_output:
                logging.info('sleep exception')
            else:
                print('sleep exception')
            await self.shutdown()