public StreamSplit createStreamSplit() {

        return new StreamSplit(
                STREAM_SPLIT_ID,
                dialect.displayCurrentOffset(sourceConfig),
                offsetFactory.createNoStoppingOffset(),
                new ArrayList<>(),
                new HashMap<>(),
                0);
    }
Assigner for stream split.
Copy from com.ververica:flink-cdc-base:2.3.0.
inlong-sort/sort-flink/cdc-base/src/main/java/org/apache/inlong/sort/cdc/base/source/assigner/StreamSplitAssigner.java