public void modifyTreeNode(DataTreeNode expectedNode) {
    throw new UnsupportedOperationException("This operation is not supported right now.");
  }
An abstract mixed-format source split.
amoro-format-mixed/amoro-mixed-flink/amoro-mixed-flink-common/src/main/java/org/apache/amoro/flink/read/hybrid/split/MixedFormatSplit.java