/**
         *
         */
        public CreateBillingAgreementResponseType CreateBillingAgreement(CreateBillingAgreementReq CreateBillingAgreementReq, string apiUsername)
        {
            setStandardParams(CreateBillingAgreementReq.CreateBillingAgreementRequest);
            string resp = call("CreateBillingAgreement", CreateBillingAgreementReq.toXMLString(), apiUsername);

            return new CreateBillingAgreementResponseType(resp);
        }