Method try_emplace

test-app/runtime/src/main/cpp/robin_hood.h:1830–1832

        template <typename... Args>
        std::pair<iterator, bool> try_emplace(const key_type& key, Args&&... args) {
            return try_emplace_impl(key, std::forward<Args>(args)...);
        }

        template <typename... Args>
        std::pair<iterator, bool> try_emplace(key_type&& key, Args&&... args) {