Method erase_first

src/game/recomp_data_api.cpp:47–58

    }
    
    bool erase_first(ValueType& out) {
        std::lock_guard lock{mutex};
        auto it = map.begin();

        if (it == map.end()) {
            return false;
        }

        out = it->second;
        map.erase(it);
        return true;
    }

    bool contains(const KeyType& key) {
        std::lock_guard lock{mutex};