Method set

tests/test_sequences_and_iterators.cpp:338–338

            : map(std::move(init)) {}

        void set(const std::string &key, std::string val) { map[key] = std::move(val); }
        std::string get(const std::string &key) const { return map.at(key); }
        size_t size() const { return map.size(); }