docs: public Observable<ServiceResponse<AppServiceCertificateOrderInner>> createOrUpdateWithServiceResponseAsync(String resourceGroupName, String certificateOrderName, AppServiceCertificateOrderInner certificateDistinguishedName) {
          if (resourceGroupName == null) {
              throw new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null.");
          }
          if (certificateOrderName == null) {
              throw new IllegalArgumentException("Parameter certificateOrderName is required and cannot be null.");
          }
          if (this.client.subscriptionId() == null) {
              throw new IllegalArgumentException("Parameter this.client.subscriptionId() is required and cannot be null.");
          }
          if (certificateDistinguishedName == null) {
              throw new IllegalArgumentException("Parameter certificateDistinguishedName is required and cannot be null.");
          }
          if (this.client.apiVersion() == null) {
              throw new IllegalArgumentException("Parameter this.client.apiVersion() is required and cannot be null.");
          }
          Validator.validate(certificateDistinguishedName);
          Observable<Response<ResponseBody>> observable = service.createOrUpdate(resourceGroupName, certificateOrderName, this.client.subscriptionId(), certificateDistinguishedName, this.client.apiVersion(), this.client.acceptLanguage(), this.client.userAgent());
          return client.getAzureClient().getPutOrPatchResultAsync(observable, new TypeToken<AppServiceCertificateOrderInner>() { }.getType());
      }