@SuppressWarnings("squid:S112")
  default void transform(RowWindow rowWindow, PointCollector collector) throws Exception {
    // do nothing
  }
When the user specifies {@link SlidingSizeWindowAccessStrategy} or {@link
SlidingTimeWindowAccessStrategy} to access the original data in {@link UDTFConfigurations},
this method will be called to process the transformation. In a single UDF query, this method
may be called multiple times.

@param rowWindow original input data window (rows inside the window are aligned by time)
@param collector used to collect output data points
@throws Exception the user can throw errors if necessary
@see SlidingSizeWindowAccessStrategy
@see SlidingTimeWindowAccessStrategy
iotdb-api/udf-api/src/main/java/org/apache/iotdb/udf/api/UDTF.java