Every time a chunk is processed by the pipelines, the post-script for the chunk is executed.
每次通过管道处理数据块时，会执行该数据块的后脚本。
2
After all the file's chunks have been processed by the pipelines, the post-script for the file is executed.
在通过管道处理完所有文件的数据块之后，就会执行该文件的后脚本。
3
For POST requests, the script retrieves the message entered by the user and then POSTs it to the API endpoint for new message creation, as shown in Listing 3.