code: @Override
      public ListItemsResult listItems(ListItemsRequest request) {
          request = beforeClientExecution(request);
          return executeListItems(request);
      }
docs: <p>
  Provides a list of metadata entries about folders and objects in the specified folder.
  </p>
  
  @param listItemsRequest
  @return Result of the ListItems operation returned by the service.
  @throws ContainerNotFoundException
  The specified container was not found for the specified account.
  @throws InternalServerErrorException
  The service is temporarily unavailable.
  @sample AWSMediaStoreData.ListItems
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/mediastore-data-2017-09-01/ListItems" target="_top">AWS API
  Documentation</a>