<povikMartinPovie>
can the get method return &'a str right away?
<povikMartinPovie>
there must be some advantage to Ref<> which I don't know
<jix>
so a RefCell tracks shared / mutable borrowing dynamically at runtime, for that it needs to know how long a borrow lasts, so it doesn't give you a direct reference but a wrapper that will update the refcell state when dropped
<jix>
(unless I missed some context and this is a different kind of Ref)