{"ast_node_type":"variable","tokens":[{"end":96,"kind":"keyword","start":0,"text":"let"}]}
            let attr = if self.check(exp!(Pound)) && self.look_ahead(1, |t| t == &token::Bang) {
            // Only try to parse if it is an inner attribute (has `!`).
                Some(self.parse_attribute(InnerAttrPolicy::Permitted)?)