public final boolean isBinlogSplitState() {
        return getClass() == MySqlBinlogSplitState.class;
    }
Checks whether this split state is a binlog split state.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/mysql/source/split/MySqlSplitState.java