Facebook.FacebookClient.SerializeParameters C# (CSharp) Method

        private void SerializeParameters(IDictionary<string, object> parameters)
        {
            var keysThatAreNotString = new List<string>();
            foreach (var key in parameters.Keys)
            {
                if (!(parameters[key] is string))
                    keysThatAreNotString.Add(key);
            }

            foreach (var key in keysThatAreNotString)
                parameters[key] = SerializeJson(parameters[key]);
        }