{"ast_node_type":"function","tokens":[{"end":76,"kind":"keyword","start":0,"text":"r#\"fn"}]}
            r#"fn my_fun<'other, 'a>(f: &'a Foo, b: &'other Bar) -> X<'a>"#,
            r#"fn my_fun<'other>(f: &Foo, b: &'other Bar) -> X<'_$0>"#,
        );