WhatsAppApi.WhatsApp.processChallenge C# (CSharp) Метод

        protected void processChallenge(ProtocolTreeNode node)
        {
            string challenge = Func.DecodeTo64(node.data, this.sysEncoding);
            string[] challengeStrs = challenge.Split(',');
            this.challengeArray = new Dictionary<string, string>();
            foreach (var item in challengeStrs)
            {
                string[] d = item.Split('=');
                if (this.challengeArray.ContainsKey(d[0]))
                    this.challengeArray[d[0]] = d[1].Replace("\"", "");
                else
                    this.challengeArray.Add(d[0], d[1].Replace("\"", ""));
            }
        }