code: public ContainerServiceInner createOrUpdate(String resourceGroupName, String containerServiceName, ContainerServiceInner parameters) {
          return createOrUpdateWithServiceResponseAsync(resourceGroupName, containerServiceName, parameters).toBlocking().last().body();
      }
docs: Creates or updates a container service.
  Creates or updates a container service with the specified configuration of orchestrator, masters, and agents.
  
  @param resourceGroupName The name of the resource group.
  @param containerServiceName The name of the container service in the specified subscription and resource group.
  @param parameters Parameters supplied to the Create or Update a Container Service 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 ContainerServiceInner object if successful.