protected Map<String, String> coreReportMessage() {
    final Map<String, String> result = super.coreReportMessage();
    result.put("tsFile", String.valueOf(tsFile));
    return result;
  }
The {@code SubscriptionEventTsFileResponse} class extends {@link
SubscriptionEventExtendableResponse} to manage subscription responses related to time series
files. The actual payload can include {@link FileInitPayload}, {@link FilePiecePayload}, and
{@link FileSealPayload}, allowing for detailed control over file data streaming.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/subscription/event/response/SubscriptionEventTsFileResponse.java