/// <summary>
        /// POST /paymentMethods API call
        /// </summary>
        /// <param name="paymentMethodsRequest"></param>
        /// <returns></returns>
        public PaymentMethodsResponse PaymentMethods(PaymentMethodsRequest paymentMethodsRequest)
        {
            var jsonRequest  = Util.JsonOperation.SerializeRequest(paymentMethodsRequest);
            var jsonResponse = _paymentMethods.Request(jsonRequest);

            return(JsonConvert.DeserializeObject <PaymentMethodsResponse>(jsonResponse));
        }