{"ast_node_type":"variable","tokens":[{"end":22,"kind":"keyword","start":0,"text":"let"}]}
        let is_await =
    fn parse_expr_for(&mut self, opt_label: Option<Label>, lo: Span) -> PResult<'a, P<Expr>> {
            self.token_uninterpolated_span().at_least_rust_2018() && self.eat_keyword(exp!(Await));