for (final String field : fields) {
            final Object textObj = document.get(field);
            if (textObj == null) {
                continue;
            }
            final String text = textObj.toString();
            final String lang = document.get(langFieldName) == null ? null : document.get(langFieldName).toString();

But in most of the cases where we need to do something like this, we want the model just to **filter/remove** some of the data as in this example.

app = FastAPI()


async def common_parameters(q: str | None = None, skip: int = 0, limit: int = 100):
    return {"q": q, "skip": skip, "limit": limit}


@app.get("/items/")
async def read_items(commons: Annotated[dict, Depends(common_parameters)]):
    return commons


@app.get("/users/")
async def read_users(commons: Annotated[dict, Depends(common_parameters)]):

from fastapi import FastAPI, Path, Query

app = FastAPI()


@app.get("/items/{item_id}")
async def read_items(
    *,
    item_id: int = Path(title="The ID of the item to get", ge=0, le=1000),
    q: str,
    size: float = Query(gt=0, lt=10.5),
):
    results = {"item_id": item_id}
    if q:
        results.update({"q": q})
    if size:
        results.update({"size": size})

    protected static final String MESSAGE_FIELD = "message";

    protected static final String RESULT_FIELD = "result";

    private static final String DOC_ID_FIELD = "doc_id";

    protected static final String GET = "GET";

    protected static final String POST = "POST";

    protected String mimeType = "application/json";

    public SearchApiManager() {
        setPathPrefix("/api/v1");
    }

            when {
                parameters.ignoreIncomingBuildReceipt.get() -> "$it (ignored)"
                else -> it
            }
        }

    private
    fun Parameters.buildReceiptString(): String? = when {
        ignoreIncomingBuildReceipt.get() -> null
        else -> buildReceiptFileContents.orNull
    }

        if (logger.isDebugEnabled()) {
            logger.debug("Adding {}", dataMap);
        }

        //   required check
        final Object urlObj = dataMap.get(fessConfig.getIndexFieldUrl());
        if (urlObj == null) {
            throw new DataStoreException("url is null. dataMap=" + dataMap);
        }

        AtomicReference<Parent> modified = new AtomicReference<>();
        assertNotNull(this.newModelResolver().resolveModel(parent, modified));
        assertNotNull(modified.get());
        assertEquals("1.0", modified.get().getVersion());
    }

    @Test
    void testResolveDependencyThrowsUnresolvableModelExceptionWhenNotFound() throws Exception {
        final Dependency dependency = Dependency.newBuilder()

async def parent_dep(result=Depends(response_status_setter)):
    return result


@app.get("/", dependencies=[Depends(parent_dep)])
async def get_main():
    return {"msg": "Hello World"}


client = TestClient(app)


def test_dependency_set_status_code():
    response = client.get("/")
    assert response.status_code == 201, response.text

async def common_parameters(
    q: Union[str, None] = None, skip: int = 0, limit: int = 100
):
    return {"q": q, "skip": skip, "limit": limit}


@app.get("/items/")
async def read_items(commons: Annotated[dict, Depends(common_parameters)]):
    return commons


@app.get("/users/")
async def read_users(commons: Annotated[dict, Depends(common_parameters)]):