Dictionary serialize

    string JsonDictOut<T1, T2>(Dictionary<T1, T2> dict) {
        return $"{JsonUtility.ToJson(dict.Select(t => t.Key).ToArray())}\n{JsonUtility.ToJson(dict.Select(t => t.Value).ToArray())}";
    }

    Dictionary<T1, T2> JsonDictIn<T1, T2>(string data) {
        var keys = JsonUtility.FromJson<T1[]>(data.Split('\n')[0]);
        var values = JsonUtility.FromJson<T2[]>(data.Split('\n')[1]);
        var dict = new Dictionary<T1, T2>();
        for (var i = 0; i < keys.Length; i++) {
            dict[keys[i]] = values[i];
        }
        return dict;
    }