How to get the number of records in the event listener

[bugouyongxin]

根据事件监听器的文档中的示例代码

/**
* 处理读取器打开事件
*/
private void handleReaderOpenEvent(ReaderOpenEvent event) {
log.info("读取器打开 | 插件ID: {}, 并行度: {}, 时间: {}",
event.getPluginId(), event.getParallelism(), event.getEventTime());
// 处理读取器初始化逻辑
}

/**
 * 处理写入器关闭事件
 */
private void handleWriterCloseEvent(WriterCloseEvent event) {
    log.info("写入器关闭 | 插件ID: {}, 处理记录数: {}, 时间: {}",
        event.getPluginId(), event.getRecordCount(), event.getEventTime());
    // 处理写入器资源清理逻辑
}

请问2.3.12版本seatunne-api中的这两个方法event.getParallelism() 、event.getRecordCount()在哪里？

[dybyte]

I checked the code, but I couldn't find these methods.
cc @hawk9821 Could you explain why this code was included in the document?
It's possible that I misunderstood something.