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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 expire(self, name, time):
 """ Set an expire flag on key ``name`` for ``time`` seconds. ``time`` can be represented by an integer or a Python timedelta object. """

        if isinstance(time, datetime.timedelta):
            time = time.seconds + time.days * 24 * 3600
        return await self.execute_command('EXPIRE', name, time)