def exists(self, key):
        self._send('EXISTS', key)
        return self.getResponse()
Expect a set of tuples
dataset/ETHPy150Open deldotdr/txRedis/txredis/client.py/RedisClient.exists--crossover with--dataset/ETHPy150Open numba/numba/numba/tests/test_sets.py/unbox_usecase2