Can monads be used to securely erase data

I’ve always been interested in this question:
Can monads be used to securely erase data?
There is a link to a GitHub project on this topic:

I want to know what you think about this?

Well, I’m not sure where the “erasing data” part is supposed to come in? This all just seems like Const () with the corresponding (trivial) instances for a few classes? So I don’t really understand the aim of this repository.

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Thank you for your attention and time.
But I can’t answer for the author about the purpose of his project,
so it’s better to ask him in writing (e-mail address is provided).
I can only guess.