def test_duplicates():
    response = client.post("/with-duplicates", json={"data": "myitem"})
    assert response.status_code == 200, response.text
    assert response.json() == [{"data": "myitem"}, {"data": "myitem"}]


def test_sub_duplicates():
    response = client.post("/with-duplicates-sub", json={"data": "myitem"})
    assert response.status_code == 200, response.text

        mergedItem.setRoles(mergeStringArrays(item1.getRoles(), item2.getRoles()));

        // Merge kinds
        mergedItem.setKinds(mergeKinds(item1.getKinds(), item2.getKinds()));

        // Take newer values from item2
        mergedItem.setTimestamp(item2.getTimestamp());
        mergedItem.setUserBoost(item2.getUserBoost());
        mergedItem.setEmptySource(item2.toEmptyMap());

        // Sum frequencies

        SuggestItem item2 = createItem("test text", 20L, 15L, 2.0f);

        SuggestItem merged = SuggestItemMerger.merge(item1, item2);

        assertEquals("test text", merged.getText());
    }

    @Test
    public void testMerge_preservesId() {
        SuggestItem item1 = createItem("text", 10L, 5L, 1.0f);
        SuggestItem item2 = createItem("text", 20L, 15L, 2.0f);

            SuggestItem mergedItem = item1;
            for (final SuggestItem item2 : items) {
                if (item1.equals(item2)) {
                    continue;
                }

                final String item2Id = item2.getId();
                if (item1Id.equals(item2Id)) {
                    mergedItem = SuggestItem.merge(mergedItem, item2);
                    mergedIdSet.add(item1Id);
                }
            }

    type: str = "car"


class PlaneItem(BaseItem):
    type: str = "plane"
    size: int


items = {
    "item1": {"description": "All my friends drive a low rider", "type": "car"},
    "item2": {
        "description": "Music is my aeroplane, it's my aeroplane",
        "type": "plane",
        "size": 5,
    },
}


@app.get("/items/{item_id}", response_model=PlaneItem | CarItem)

        assertEquals(arr.length, result.length);
        assertEquals(arr[0], result[0]);

        // Test ArrayList
        final List<String> list = new ArrayList<>();
        list.add("item1");
        list.add("item2");
        binary = SerializeUtil.fromObjectToBinary(list);
        @SuppressWarnings("unchecked")
        final List<String> resultList = (List<String>) SerializeUtil.fromBinaryToObject(binary);