std::ranges::BidirectionalRange

From cppreference.com
< cpp‎ | ranges
Defined in header <ranges>
template<class T>

  concept BidirectionalRange =

    ForwardRange<T> && BidirectionalIterator<iterator_t<T>>;

The BidirectionalRange concept is a refinement of Range for which ranges::begin returns a model of BidirectionalIterator.