{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"$this.collect_tokens_for_expr($attrs,"}]}
                $this.collect_tokens_for_expr($attrs, |$this, attrs| {
            ($this:ident, $attrs:expr, |this, _| $body:expr) => {
                    let (hi, ex) = $body?;