std::ranges::begin, std::ranges::cbegin
From cppreference.com
                    
                                        
                    
                    
                                                            
                    | Defined in header  <ranges> | ||
| Defined in header  <iterator> | ||
| inline constexpr /*unspecified*/ begin = /*unspecified*/; | (1) | (since C++20) | 
| inline constexpr /*unspecified*/ cbegin = /*unspecified*/; | (2) | (since C++20) |