public Map<Long, List<StreamRecordBatch>> records() {
            return map.entrySet().stream()
                .map(e -> Map.entry(e.getKey(), e.getValue().records))
                .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
        }
Merge the right block to the left block
s3stream/src/main/java/com/automq/stream/s3/cache/LogCache.java