public List<byte[]> getMetaGroup() {
        return metaGroup;
    }
The serialized meta data of binlog split, it's serialized/deserialize by {@link
FinishedSnapshotSplitInfo#serialize(FinishedSnapshotSplitInfo)} and {@link
FinishedSnapshotSplitInfo#deserialize(byte[])}.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/mysql/source/events/BinlogSplitMetaEvent.java