- /// assert_eq!(iterator.next(), Some((id1, &20)));
- /// assert_eq!(iterator.next(), Some((id2, &40)));
- /// assert_eq!(iterator.next(), Some((id3, &60)));
+ /// assert_eq!(iterator.next(), Some((idx1, &20)));
+ /// assert_eq!(iterator.next(), Some((idx2, &40)));
+ /// assert_eq!(iterator.next(), Some((idx3, &60)));