{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"//"}]}
                //     for<'a> <T as Iterator>::Item = &'a str // <-- 'a is bad
                //
                //     for<'a> <T as FnMut<(&'a u32,)>>::Output = &'a str // <-- 'a is ok