DPO支持一条数据多个rejected_response吗

我看到这里默认的DPO数据格式是 一条数据内，包含一条正例+一条负例
比如文档中：
{"messages": [{"role": "user", "content": "这是什么"}, {"role": "assistant", "content": "这是一只小猫咪。"}], "images": ["cat.png"], "rejected_response": "这是一只小狗。"}
{"messages": [{"role": "user", "content": "这是什么"}, {"role": "assistant", "content": "这是一只小猫咪。"}], "images": ["cat.png"], "rejected_images": ["dog.png"]}

例子一也可写成：(ms-swift>=3.12)

{"messages": [{"role": "user", "content": "这是什么"}, {"role": "assistant", "content": "这是一只小猫咪。"}], "images": ["cat.png"], "rejected_response": [{"role": "assistant", "content": "这是一只小狗。"}]}

我也看到最后rejected_response字段可以是一个str，也可以是一个list。那么是否可以在list中放进多个负例？

No file, test, or entry point is named. Start by locating the DPO dataset parsing path and determine whether rejected_response lists support multiple negative responses; done means the supported format and resulting behavior are verified and documented.