|  | 
| template<typename O , typename S , typename T > requires output_iterator<O, T const &> && sentinel_for<S, O> && weakly_incrementable<T>
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| O | operator() (O first, S last, T val) const | 
|  | 
| template<typename Rng , typename T > requires output_range<Rng, T const &> && weakly_incrementable<T>
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| borrowed_iterator_t< Rng > | operator() (Rng &&rng, T val) const | 
|  |