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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 _make_connection(self):
 """Construct a connection to Redis."""

        return await aioredis.create_redis(
            'redis://{}:{}'.format(
                self._redis_params.get('host', 'localhost'),
                self._redis_params.get('port', 6379)
            ),
            db=int(self._redis_params.get('db', 1))
        )