/// <remarks/>
 public void SetCustomerBillingAgreementAsync(SetCustomerBillingAgreementReq SetCustomerBillingAgreementReq, object userState) {
     if ((this.SetCustomerBillingAgreementOperationCompleted == null)) {
         this.SetCustomerBillingAgreementOperationCompleted = new System.Threading.SendOrPostCallback(this.OnSetCustomerBillingAgreementOperationCompleted);
     }
     this.InvokeAsync("SetCustomerBillingAgreement", new object[] {
                 SetCustomerBillingAgreementReq}, this.SetCustomerBillingAgreementOperationCompleted, userState);
 }
 /// <remarks/>
 public void SetCustomerBillingAgreementAsync(SetCustomerBillingAgreementReq SetCustomerBillingAgreementReq) {
     this.SetCustomerBillingAgreementAsync(SetCustomerBillingAgreementReq, null);
 }