code: public Observable<LoadBalancerInner> createOrUpdateAsync(String resourceGroupName, String loadBalancerName, LoadBalancerInner parameters) {
          return createOrUpdateWithServiceResponseAsync(resourceGroupName, loadBalancerName, parameters).map(new Func1<ServiceResponse<LoadBalancerInner>, LoadBalancerInner>() {
              @Override
              public LoadBalancerInner call(ServiceResponse<LoadBalancerInner> response) {
                  return response.body();
              }
          });
      }
docs: Creates or updates a load balancer.
  
  @param resourceGroupName The name of the resource group.
  @param loadBalancerName The name of the load balancer.
  @param parameters Parameters supplied to the create or update load balancer operation.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable for the request