|  | 
| template<typename D > requires detail::integer_like_<D>
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| constexpr auto | operator() (D step) const | 
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| template<typename Rng , typename D  = range_difference_t<Rng>> requires forward_range<Rng> && erasable_range<Rng &, iterator_t<Rng>, sentinel_t<Rng>> && permutable<iterator_t<Rng>>
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| Rng | operator() (Rng &&rng, range_difference_t< Rng > const step) const | 
|  |