public Item getItem() {
        Map<String, Object> attributes =
            InternalUtils.toSimpleMapValue(result.getItem());
        Item item = Item.fromMap(attributes);
        return item;
    }
Returns all the returned attributes as an {@link Item}; or null if the
item doesn't exist.
aws-java-sdk-dynamodb/src/main/java/com/amazonaws/services/dynamodbv2/document/GetItemOutcome.java