How can I get back the collateral FIL on devnet?

How can I get back the collateral FIL on devnet? I did not find the way on the Filecoin Docs.

很抱歉,我所知的信息都有很多不确定性!无法回答你的问题。于此我会加快学习与了解对它的认知。

谢谢你的回复,这个问题应该很多矿工都想知道吧~

Please use English… even if your English is bad.

here’s what google translate is saying that the above users wrote

“Sorry, the information I know has a lot of uncertainty! Unable to answer your question. Here I will speed up learning and understanding of it.”

“Thank you for your reply, this question should be a lot of miners want to know ~”

At the time you posted this I don’t think this was supported yet.

Think you very much.