public Map<String, BinlogOffset> getFinishedOffsets() {
        return finishedOffsets;
    }
The {@link SourceEvent} that {@link MySqlSourceReader} sends to {@link MySqlSourceEnumerator} to
notify the snapshot split has read finished with the consistent binlog position.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/mysql/source/events/FinishedSnapshotSplitsReportEvent.java