@Nullable
    public Object getChunkEnd() {
        return chunkEnd;
    }
Returns a {@link ChunkRange} with the given chunk start and chunk end.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/mysql/source/assigners/ChunkRange.java