## Utilize a instância como dependência

Então, nós podemos utilizar este `checker` em um `Depends(checker)`, no lugar de `Depends(FixedContentQueryChecker)`, porque a dependência é a instância, `checker`, e não a própria classe.

E quando a dependência for resolvida, o **FastAPI** chamará este `checker` como:

```Python

For those cases, instead of declaring a *path operation function* parameter with `Depends`, you can add a `list` of `dependencies` to the *path operation decorator*.

## Add `dependencies` to the *path operation decorator*

The *path operation decorator* receives an optional argument `dependencies`.

It should be a `list` of `Depends()`:

//// tab | Python 3.9+

```Python hl_lines="19"

もしくは、依存関係が値を返さない場合もあります。

しかし、それでも実行・解決する必要があります。

このような場合、*path operation関数*のパラメータを`Depends`で宣言する代わりに、*path operation decorator*に`dependencies`の`list`を追加することができます。

##  *path operationデコレータ*への`dependencies`の追加

*path operationデコレータ*はオプショナルの引数`dependencies`を受け取ります。

それは`Depends()`の`list`であるべきです:

```Python hl_lines="17"
{!../../docs_src/dependencies/tutorial006.py!}
```

<img src="/img/tutorial/websockets/image03.png">

👆 💪 📨 (&amp; 📨) 📚 📧:

<img src="/img/tutorial/websockets/image04.png">

&amp; 🌐 👫 🔜 ⚙️ 🎏 *️⃣ 🔗.

## ⚙️ `Depends` &amp; 🎏

*️⃣ 🔗 👆 💪 🗄 ⚪️➡️ `fastapi` &amp; ⚙️:

* `Depends`
* `Security`
* `Cookie`
* `Header`
* `Path`
* `Query`

👫 👷 🎏 🌌 🎏 FastAPI 🔗/*➡ 🛠️*:

```Python hl_lines="66-77  76-91"

    ## Example

    ```python
    from typing import Annotated

    from fastapi import Depends, FastAPI
    from fastapi.security import OAuth2PasswordRequestForm

    app = FastAPI()


    @app.post("/login")
    def login(form_data: Annotated[OAuth2PasswordRequestForm, Depends()]):
        data = {}
        data["scopes"] = []
        for scope in form_data.scopes:

				if rel.Field.IgnoreMigration {
					continue
				}
				if c := rel.ParseConstraint(); c != nil && c.Schema == dep.Statement.Schema && c.Schema != c.ReferenceSchema {
					dep.Depends = append(dep.Depends, c.ReferenceSchema)
				}

				if rel.Type == schema.HasOne || rel.Type == schema.HasMany {
					beDependedOn[rel.FieldSchema] = true
				}

				if rel.JoinTable != nil {

You can send (and receive) many messages:

<img src="/img/tutorial/websockets/image04.png">

And all of them will use the same WebSocket connection.

## Using `Depends` and others

In WebSocket endpoints you can import from `fastapi` and use:

* `Depends`
* `Security`
* `Cookie`
* `Header`
* `Path`
* `Query`

They work the same way as for other FastAPI endpoints/*path operations*:

 */

package gradlebuild.buildutils.tasks

import org.gradle.api.tasks.TaskAction
import org.gradle.work.DisableCachingByDefault
import java.util.TreeSet


@DisableCachingByDefault(because = "Depends on GitHub API")
abstract class CheckContributorsInReleaseNotes : AbstractCheckOrUpdateContributorsInReleaseNotes() {
    @TaskAction
    fun check() {

)

# To avoid duplication, check that the C++ or python library does not depend on
# the stream executor cuda plugins. Targets that want to use cuda APIs should
# instead depend on the dummy plugins in @local_tsl//tsl/platform/default/build_config
# and use header only targets.
# TODO(ddunleavy): This seems completely broken. :tensorflow_cc depends on
# cuda_platform from tf_additional_binary_deps and this doesn't break.
check_deps(

# Security Tools

When you need to declare dependencies with OAuth2 scopes you use `Security()`.

But you still need to define what is the dependable, the callable that you pass as a parameter to `Depends()` or `Security()`.

There are multiple tools that you can use to create those dependables, and they get integrated into OpenAPI so they are shown in the automatic docs UI, they can be used by automatically generated clients and SDKs, etc.