@app.post("/items/")
async def create_item(item: Item, project_id: Annotated[int, Query()]): ...
```

instead of this:

```python
# DO NOT DO THIS
class Item(BaseModel):
    name: str = ...
    description: str | None = None
    price: float = Field(..., gt=0)


app = FastAPI()


@app.post("/items/")
async def create_item(item: Item, project_id: Annotated[int, Query(...)]): ...

def get_app_client(separate_input_output_schemas: bool = True) -> TestClient:
    app = FastAPI(separate_input_output_schemas=separate_input_output_schemas)

    @app.post("/items/", responses={402: {"model": Item}})
    def create_item(item: Item) -> Item:
        return item

    @app.post("/items-list/")
    def create_item_list(item: list[Item]):
        return item

    @app.get("/items/")
    def read_items() -> list[Item]:

        itemList.add(createItem(ComponentUtil.getMessageManager().getMessage(locale, "labels.webauth_scheme_basic"), Constants.BASIC));
        itemList.add(createItem(ComponentUtil.getMessageManager().getMessage(locale, "labels.webauth_scheme_digest"), Constants.DIGEST));
        itemList.add(createItem(ComponentUtil.getMessageManager().getMessage(locale, "labels.webauth_scheme_ntlm"), Constants.NTLM));

    @Test
    public void test_createMode() {
        // Test special behavior when id is 0 (create mode)
        StopwordsItem createItem = new StopwordsItem(0, "newword");
        assertTrue(createItem.isUpdated());
        assertEquals("newword", createItem.getNewInput());
        assertEquals("newword", createItem.toLineString());

        // Non-zero id should not auto-set newInput

        final Locale locale = ComponentUtil.getRequestManager().getUserLocale();
        itemList.add(createItem(ComponentUtil.getMessageManager().getMessage(locale, "labels.file_auth_scheme_samba"), Constants.SAMBA));
        itemList.add(createItem(ComponentUtil.getMessageManager().getMessage(locale, "labels.file_auth_scheme_ftp"), Constants.FTP));

        final List<WebConfig> webConfigList = crawlingConfigHelper.getAllWebConfigList(false, false, false, null);
        for (final WebConfig webConfig : webConfigList) {
            itemList.add(createItem(webConfig.getName(), webConfig.getId().toString()));
        }
        RenderDataUtil.register(data, "webConfigItems", itemList);
    }

    /**
     * Creates a map item for UI rendering with label and value.

     *
     * @param label the display label for the item
     * @param value the value associated with the item
     * @return a map containing the label and value entries
     */
    protected Map<String, String> createItem(final String label, final String value) {
        final Map<String, String> map = new HashMap<>(2);
        map.put(Constants.ITEM_LABEL, label);
        map.put(Constants.ITEM_VALUE, value);
        return map;
    }

        return getList(OpenSearchUrlQueue.class, sessionId, null, 0, pollingFetchSize,
                SortBuilders.fieldSort(OpenSearchUrlQueue.WEIGHT).order(SortOrder.DESC),
                SortBuilders.fieldSort(CREATE_TIME).order(SortOrder.ASC));
    }

    /**
     * Saves the session state (currently not implemented).
     *
     * @param sessionId The session ID.
     */
    @Override

     * Field name for creation time timestamp.
     */
    protected static final String CREATE_TIME = "createTime";

    /**
     * Document type.
     */
    protected static final String _DOC = "_doc";

    /**
     * Fields that store timestamps.
     */
    protected static final String[] timestampFields = { LAST_MODIFIED, CREATE_TIME };

    /**
     * Hash function for generating IDs.
     */

                builder.setSize(maxDocumentCacheSize <= 0 ? 1 : maxDocumentCacheSize);
                builder.addSort(OpenSearchAccessResult.CREATE_TIME, SortOrder.ASC);
            };

            final DocList docList = new DocList();
            final List<OpenSearchAccessResult> accessResultList = new ArrayList<>();