{"ast_node_type":"struct","tokens":[{"end":79,"kind":"keyword","start":0,"text":"///"}]}
    /// - For `T` in `struct Foo<'a, T: 'a>(&'a T);`, this would be `Param('a)`
    ///
    /// - For `T` in `struct Bar<'a, T>(&'a T);`, this would be `Empty`