Equivalent of Stateful in IterTools


The package Base.Iterators has been deprecated for many years now, in favor of IterTools.
But I don’t see the equivalent of the Stateful iterator in IterTools’ documentation.
Is it in another package ?

Same for the lazy Iterators.reverse. There’s no equivalent in IterTools. Base.reverse’s docstring even points to Base.Iterators for the lazy version.

How come IterTools has less functionalities than Iterators?