What if threads in the assistantfeature are not deleted

On the note of Threads and by proxy Assistants and Files, I’ve been trying to find a way to mass delete some Files from the system and coming up short.

I did do some research here: Cant delete assistant files after deleting assistant and here: Cleanup all the files attached to a thread - #2 by RonaldGRuckus to get some context on the right API calls to make but I think I’m missing something to be honest because I can’t get any File related requests to work.

Any suggestions, I can post my redacted terminal output if it would help.