@Override
    public Void visitRollbackPreDeleteTimeSeries(
        IRollbackPreDeleteTimeSeriesPlan rollbackPreDeleteTimeSeriesPlan,
        StringBuilder stringBuilder) {
      stringBuilder.append(rollbackPreDeleteTimeSeriesPlan.getPath().getFullPath());
      return null;
    }
This class provides the ability to serialize the given SchemaRegionPlan into binary data as txt
format, which is used for MLogParser.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/schemaengine/schemaregion/logfile/visitor/SchemaRegionPlanTxtSerializer.java