{"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"r#\"impl<'a,"}]}
            r#"impl<'a, 'b> Cursor<'a, 'b, '_$0>"#,
            introduce_named_lifetime,
            r#"impl<'a, 'b, 'c> Cursor<'a, 'b, 'c>"#,