255     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
267     fn size_hint(_depth: usize) -> (usize, Option<usize>) {  in size_hint()
278     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
363     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
374     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
385     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
396     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
498     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
516     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
534     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
618     fn size_hint(_: usize) -> (usize, Option<usize>) {  in size_hint()
640     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
655     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
670     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
685     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
700     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
717     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
732     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
747     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
762     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
777     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
812     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
827     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
841     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
852     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
863     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
874     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
885     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
896     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
920     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
931     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
942     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
953     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
964     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
975     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()
986     fn size_hint(_depth: usize) -> (usize, Option<usize>) {  in size_hint()
997     fn size_hint(_depth: usize) -> (usize, Option<usize>) {  in size_hint()
1008     fn size_hint(depth: usize) -> (usize, Option<usize>) {  in size_hint()