단순히 `Depends`에 넘겨주기만 하면 되며, **FastAPI**는 나머지를 어찌할지 알고 있습니다.

## `Annotated`인 의존성 공유하기

위의 예제에서 몇몇 작은 **코드 중복**이 있다는 것을 보았을 겁니다.

`common_parameters()`의존을 사용해야 한다면, 타입 명시와 `Depends()`와 함께 전체 매개변수를 적어야 합니다:

```Python
commons: Annotated[dict, Depends(common_parameters)]
```

하지만 `Annotated`를 사용하고 있기에, `Annotated` 값을 변수에 저장하고 여러 장소에서 사용할 수 있습니다:

=== "Python 3.10+"

from fastapi.testclient import TestClient
from typing_extensions import Annotated

app = FastAPI()


@app.get("/default")
async def default(foo: Annotated[str, Query()] = "foo"):
    return {"foo": foo}


@app.get("/required")
async def required(foo: Annotated[str, Query(min_length=1)]):
    return {"foo": foo}


@app.get("/multiple")
async def multiple(foo: Annotated[str, object(), Query(min_length=1)]):
    return {"foo": foo}

=== "Python 3.10+ nicht annotiert"

    !!! tip "Tipp"
        Bevorzugen Sie die `Annotated`-Version, falls möglich.

    ```Python hl_lines="3  7  11  45  63  104  106-114  120-123  127-133  138  154"
    {!> ../../../docs_src/security/tutorial005_py310.py!}
    ```

=== "Python 3.9+ nicht annotiert"

    !!! tip "Tipp"
        Bevorzugen Sie die `Annotated`-Version, falls möglich.

    ```

=== "Python 3.10+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="2  74"
    {!> ../../../docs_src/security/tutorial003_py310.py!}
    ```

=== "Python 3.8+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="4  76"

- Method multipleProblems(java.util.List, T) is not a valid rule method: Can only be one of [annotated with @Model and returning a model element, annotated with @Model and taking a managed model element, annotated with @Defaults, annotated with @Mutate, annotated with @Finalize, annotated with @Validate, annotated with @Rules]
- Method multipleProblems(java.util.List, T) is not a valid rule method: A rule method cannot be private

    ```

=== "Python 3.10+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="7  48  55-56  59-60  69-75"
    {!> ../../../docs_src/security/tutorial004_py310.py!}
    ```

=== "Python 3.8+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

encoders_by_class_tuples = generate_encoders_by_class_tuples(ENCODERS_BY_TYPE)


def jsonable_encoder(
    obj: Annotated[
        Any,
        Doc(
            """
            The input object to convert to JSON.
            """
        ),
    ],
    include: Annotated[
        Optional[IncEx],
        Doc(
            """

!!! info
    FastAPI unterstützt (und empfiehlt die Verwendung von) `Annotated` seit Version 0.95.0.

    Wenn Sie eine ältere Version haben, werden Sie Fehler angezeigt bekommen, wenn Sie versuchen, `Annotated` zu verwenden.

    Bitte [aktualisieren Sie FastAPI](../../deployment/versions.md#upgrade-der-fastapi-versionen){.internal-link target=_blank} daher mindestens zu Version 0.95.1, bevor Sie `Annotated` verwenden.

### `Depends` importieren

    ```

=== "Python 3.10+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="18-25"
    {!> ../../../docs_src/schema_extra_example/tutorial003_py310.py!}
    ```

=== "Python 3.8+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="20-27"

            details == 'A property of type \'File\' annotated with @Input cannot determine how to interpret the file'
            solutions == [
                'Annotate with @InputFile for regular files',
                'Annotate with @InputFiles for collections of files',
                'If you want to track the path, return File.absolutePath as a String and keep @Input',