code: 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();
              }
          });
      }
docs: Update current billing features for an Application Insights component.
  
  @param resourceGroupName The name of the resource group.
  @param resourceName The name of the Application Insights component resource.
  @param billingFeaturesProperties Properties that need to be specified to update billing features for an Application Insights component.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the ApplicationInsightsComponentBillingFeaturesInner object