### Question:
ApiOperations { public static ApiOperation deleteItem(String id) { return new DeleteItem(id); } private  ApiOperations(); static ApiOperation deleteItem(String id); static ApiOperation deleteItem(String id, byte[] version, RequestMode requestMode); static ApiOperation deleteQueueItems(String queueName); static ApiOperation batch(Iterator<ApiOperation> operations);  }### Answer:
@Test public void deleteItem_helpers() { DeleteItem deleteItem = (DeleteItem) ApiOperations.deleteItem("itemId"); assertThat(deleteItem.getId(), equalTo("itemId")); assertThat(deleteItem.toString(), equalTo("DeleteItem [itemId=itemId]")); }