public List<CreateIdStatus<K>> getElements()
  {
    return _collection;
  }
@Test(dataProvider = "provideKeys")
  public <K> void testCreate(K[] keys)
  {
    ProtocolVersion version = AllProtocolVersions.BASELINE_PROTOCOL_VERSION;

    List<CreateIdStatus<K>> elements = new ArrayList<>();
    elements.add(new CreateIdStatus<>(HttpStatus.S_201_CREATED.getCode(), keys[0], null, version));
    elements.add(new CreateIdStatus<>(HttpStatus.S_201_CREATED.getCode(), keys[1], null, version));

    ErrorResponse error = new ErrorResponse().setMessage("3");
    elements.add(new CreateIdStatus<>(HttpStatus.S_500_INTERNAL_SERVER_ERROR.getCode(), keys[2], error, version));

    BatchCreateIdResponse<K> batchResp = new BatchCreateIdResponse<>(elements);

    Assert.assertEquals(batchResp.getElements(), elements);
  }