Is there a rest api for SQL explain?

[helifee]

I fetch a url (notebook/api/explain) vi F12, but I can't call it via a REST API? which src file can I get all the REST APIs from

if there is not such a REST API ? How can I write one? Thank you very much

these two is the same
1、cancel query ： notebook/api/cancel_statement
2、download query result ： /notebook/download