{"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"BorrowKind::Shared"}]}
            BorrowKind::Shared => Mutability::Not,
            BorrowKind::Mut { .. } => Mutability::Mut,
            // FIXME: There's no type corresponding to a shallow borrow, so use `&` as an approximation.