std::range-default-formatter<std::range_format::string>, std::range-default-formatter<std::range_format::debug_string>
Min standard notice:
Header: <format>
The class template /range-default-formatter/ for range types is specialized for formatting range as a string or an escaped string if std::format_kind
# Declarations
template< std::range_format K, ranges::input_range R, class CharT >
requires (K == std::range_format::string || K == std::range_format::debug_string)
struct /*range-default-formatter*/<K, R, CharT>;
(since C++23) (exposition only*)