* drop escaped separators (i.e '\,').
     *
     * @param str  the <code>String</code> to unescape, may be null
     * @return the processed string
     * @throws IllegalArgumentException if the Writer is <code>null</code>
     */
    protected static String unescapeJava(String str) {
        if (str == null) {
            return null;
        }
        int sz = str.length();
        StringBuilder out = new StringBuilder(sz);

class RecursiveItem(BaseModel):
    sub_items: List["RecursiveItem"] = []
    name: str


RecursiveItem.update_forward_refs()


class RecursiveSubitemInSubmodel(BaseModel):
    sub_items2: List["RecursiveItemViaSubmodel"] = []
    name: str


class RecursiveItemViaSubmodel(BaseModel):
    sub_items1: List[RecursiveSubitemInSubmodel] = []
    name: str


RecursiveSubitemInSubmodel.update_forward_refs()

class LabelSettings(BaseModel):
    await_label: str | None = None
    number: int


default_config = {"approved-2": LabelSettings(await_label="awaiting-review", number=2)}


class Settings(BaseSettings):
    github_repository: str
    token: SecretStr
    debug: bool | None = False
    config: dict[str, LabelSettings] | Literal[""] = default_config


settings = Settings()

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None
    tags: set[str] = set()


@app.post("/items/", response_model=Item, summary="Create an item")
async def create_item(item: Item):
    """
    Create an item with all the information:

    - **name**: each item must have a name

    return "alice", required_scopes.scopes


def get_data():
    return [1, 2, 3]


def get_data_override():
    return [3, 4, 5]


@app.get("/user")
def read_user(
    user_data: Tuple[str, List[str]] = Security(get_user, scopes=["foo", "bar"]),
    data: List[int] = Depends(get_data),
):
    return {"user": user_data[0], "scopes": user_data[1], "data": data}


client = TestClient(app)

```Python hl_lines="1"
async def needy_dependency(fresh_value: Annotated[str, Depends(get_value, use_cache=False)]):
    return {"fresh_value": fresh_value}
```

////

//// tab | Python 3.8+ nicht annotiert

/// tip | "Tipp"

Bevorzugen Sie die `Annotated`-Version, falls möglich.

///

```Python hl_lines="1"
async def needy_dependency(fresh_value: str = Depends(get_value, use_cache=False)):

from typing import Dict, List, Optional

from fastapi import FastAPI
from pydantic import BaseModel, Field
from starlette.testclient import TestClient

app = FastAPI()


class Item(BaseModel):
    name: str = Field(alias="aliased_name")
    price: Optional[float] = None
    owner_ids: Optional[List[int]] = None


@app.get("/items/valid", response_model=Item)
def get_valid():
    return Item(aliased_name="valid", price=1.0)

    await websocket.accept()
    await websocket.send_text("Hello, router!")
    await websocket.close()


@router.websocket("/router/{pathparam:path}")
async def routerindexparams(websocket: WebSocket, pathparam: str, queryparam: str):
    await websocket.accept()
    await websocket.send_text(pathparam)
    await websocket.send_text(queryparam)
    await websocket.close()


async def ws_dependency():
    return "Socket Dependency"

from fastapi.testclient import TestClient
from pydantic import BaseModel

app = FastAPI()

api_key = APIKeyQuery(name="key", description="API Key Query")


class User(BaseModel):
    username: str


def get_current_user(oauth_header: str = Security(api_key)):
    user = User(username=oauth_header)
    return user


@app.get("/users/me")
def read_current_user(current_user: User = Depends(get_current_user)):

            b[j++] = (byte)(c[i] >>> 0);
        }
        write( b, 0, blen );
    }
    public final void writeUTF( String str ) throws SmbException {
        int len = str.length();
        int ch, size = 0;
        byte[] dst;

        for( int i = 0; i < len; i++ ) {
            ch = str.charAt( i );
            size += ch > 0x07F ? (ch > 0x7FF ? 3 : 2) : 1;
        }
        dst = new byte[size];