log-levels concept exercise needs a more fleshed-out stub about cpp HOT 3 CLOSED

namespace log_line {
    std::string message(const std::string& line) {
        // return the message
    }

    std::string log_level(const std::string& line) {
        // return the log level
    }

    std::string reformat(const std::string& line) {
        // return the reformatted message
    }
}