{"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"Some(self.parse_pat_no_top_alt(Some(Expected::BindingPattern),"}]}
            Some(self.parse_pat_no_top_alt(Some(Expected::BindingPattern), None)?)
        let sub = if self.eat(exp!(At)) {
        } else {