public byte[] fetchSession(final Bytes key,
                               final long sessionStartTime,
                               final long sessionEndTime) {
        return get(TimeFirstSessionKeySchema.toBinary(
            key,
            sessionStartTime,
            sessionEndTime
        ));
    }
A RocksDB backed time-ordered segmented bytes store for session key schema.
streams/src/main/java/org/apache/kafka/streams/state/internals/RocksDBTimeOrderedSessionSegmentedBytesStore.java