std::ranges::iota_view<W, Bound>:: end

From cppreference.com
Ranges library
Range adaptors
constexpr auto end ( ) const ;
(1) (since C++20)
constexpr /*iterator*/ end ( ) const requires std:: same_as < W, Bound > ;
(2) (since C++20)
1) Obtains a sentinel representing the sentinel value:
2) Obtains an iterator to the sentinel value.

Return value

1) As specified above.
2) iterator  { bound_  }

Example

#include <iostream>
#include <ranges>
 
int main()
{
    auto iota{std::views::iota(2, 6)};
    auto end{iota.end()};
    for (auto iter{iota.begin()}; iter != end; ++iter)
        std::cout << *iter << ' ';
    std::cout << '\n';
}

Output:

2 3 4 5