api/java/src/main/java/com/navercorp/redis/cluster/spring/AbstractOperations.java
byte[][] rawKeys(K key, K otherKey) {
        final byte[][] rawKeys = new byte[2][];

        rawKeys[0] = rawKey(key);
        rawKeys[1] = rawKey(key);
        return rawKeys;
    }
byte[][] rawKeys(K key, K otherKey) {
        final byte[][] rawKeys = new byte[2][];

        rawKeys[0] = rawKey(key);
        rawKeys[1] = rawKey(key);
        return rawKeys;
    }
Raw keys.

@param key      the key
@param otherKey the other key
@return the byte[][]