WhatsAppApi.WhatsApp.addFeatures C# (CSharp) Метод

        protected ProtocolTreeNode addFeatures()
        {
            var child = new ProtocolTreeNode("receipt_acks", null);
            var childList = new List<ProtocolTreeNode>();
            childList.Add(child);
            var parent = new ProtocolTreeNode("stream:features", null, childList, "");
            return parent;
        }