{"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"//"}]}
        //    "well duh" and is only confusing and not helpful.
        //    `&T`. Saying "the caller chooses a type for `T` which can be different from `&T`" is
        let ty::Param(expected_ty_as_param) = expected.kind() else {