/// <summary>
        /// Unmarshaller the response from the service to the response class.
        /// </summary>
        /// <param name="context"></param>
        /// <returns></returns>
        public override AmazonWebServiceResponse Unmarshall(XmlUnmarshallerContext context)
        {
            CreateOriginRequestPolicyResponse response = new CreateOriginRequestPolicyResponse();

            UnmarshallResult(context, response);
            if (context.ResponseData.IsHeaderPresent("ETag"))
            {
                response.ETag = context.ResponseData.GetHeaderValue("ETag");
            }
            if (context.ResponseData.IsHeaderPresent("Location"))
            {
                response.Location = context.ResponseData.GetHeaderValue("Location");
            }

            return(response);
        }
        private static void UnmarshallResult(XmlUnmarshallerContext context, CreateOriginRequestPolicyResponse response)
        {
            int originalDepth = context.CurrentDepth;
            int targetDepth   = originalDepth + 1;

            while (context.Read())
            {
                if (context.IsStartElement || context.IsAttribute)
                {
                    if (context.TestExpression("OriginRequestPolicy", targetDepth))
                    {
                        var unmarshaller = OriginRequestPolicyUnmarshaller.Instance;
                        response.OriginRequestPolicy = unmarshaller.Unmarshall(context);
                        continue;
                    }
                }
                else if (context.IsEndElement && context.CurrentDepth < originalDepth)
                {
                    return;
                }
            }

            return;
        }