code: public List<T> batchLoad(Iterable<T> itemsToGet) {
          final Map<String,List<Object>> results = mapper.batchLoad(itemsToGet);
          if (results.isEmpty()) {
              return Collections.<T>emptyList();
          }
          return (List<T>)results.get(mapper.getTableName(model.targetType(), config));
      }
docs: Retrieves multiple items from the table using their primary keys.
  @param itemsToGet The items to get.
  @return The list of objects.
  @see com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBMapper#batchLoad