@brief access the first element @sa https://json.nlohmann.me/api/basic_json/front/
| 2421 | /// @brief access the first element |
| 2422 | /// @sa https://json.nlohmann.me/api/basic_json/front/ |
| 2423 | reference front() |
| 2424 | { |
| 2425 | return *begin(); |
| 2426 | } |
| 2427 | |
| 2428 | /// @brief access the first element |
| 2429 | /// @sa https://json.nlohmann.me/api/basic_json/front/ |