Let me guess. To somehow patch iteration on associative arrays? And instead of bringing pairs or tuples as first class citizens it extends iterators with `key` and `value`. And now any Iterator implementation should track own sequentially increasing key. Very nice design indeed.

Associative arrays are iterable internally without needing an interface or key tracking. You can just foreach them.

> Let me guess.

This just proves my point, you call this a “hot mess” whilst completely misunderstanding what it’s even used for.

The Iterator interface isn’t even used in the comment you first replied to.