code: public LoadBalancerInner createOrUpdate(String resourceGroupName, String loadBalancerName, LoadBalancerInner parameters) {
          return createOrUpdateWithServiceResponseAsync(resourceGroupName, loadBalancerName, parameters).toBlocking().last().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
  @throws CloudException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent
  @return the LoadBalancerInner object if successful.