docs: public Observable<ApplicationInsightsComponentBillingFeaturesInner> updateAsync(String resourceGroupName, String resourceName, ApplicationInsightsComponentBillingFeaturesInner billingFeaturesProperties) {
          return updateWithServiceResponseAsync(resourceGroupName, resourceName, billingFeaturesProperties).map(new Func1<ServiceResponse<ApplicationInsightsComponentBillingFeaturesInner>, ApplicationInsightsComponentBillingFeaturesInner>() {
              @Override
              public ApplicationInsightsComponentBillingFeaturesInner call(ServiceResponse<ApplicationInsightsComponentBillingFeaturesInner> response) {
                  return response.body();
              }
          });
      }