private static string ToJsonIntArray(int[] array)
    {
        TopLevelIntArray topLevelArray = new TopLevelIntArray()
        {
            array = array
        };

        return(JsonUtility.ToJson(topLevelArray));
    }
    private static int[] FromJsonIntArray(string json)
    {
        TopLevelIntArray topLevel = JsonUtility.FromJson <TopLevelIntArray>(json);

        return(topLevel.array);
    }