return ErrPermission
		}
		return errKeyCreationFailed(err)
	}
	return nil
}

// DeleteKey deletes a key at the KMS with the given key ID.
// Please note that is a dangerous operation.
// Once a key has been deleted all data that has been encrypted with it cannot be decrypted
// anymore, and therefore, is lost.
func (c *kesConn) DeleteKey(ctx context.Context, req *DeleteKeyRequest) error {

func (list *TargetList) Exists(id TargetID) bool {
	list.RLock()
	defer list.RUnlock()

	_, found := list.targets[id]
	return found
}

// TargetIDResult returns result of Remove/Send operation, sets err if
// any for the associated TargetID
type TargetIDResult struct {
	// ID where the remove or send were initiated.
	ID TargetID
	// Stores any error while removing a target or while sending an event.

CAREFUL: When utilizing two-way communication, it is important to ensure that the remote handler is not blocked on a send.
If the remote handler is blocked on a send, and the client is trying to send without the remote receiving, 
the operation would become deadlocked if the channels are full.

### Typed handlers

Typed handlers are handlers that have a specific type for the request and response payloads.

```go
    // Create a typed handler.

                   "max_stream_duration": "0s",
                   "grpc_timeout_header_max": "0s"
                  }
                 },
                 "decorator": {
                  "operation": ":0/*"
                 },
                 "name": "default"
                }
               ]
              }
             ],
             "validate_clusters": false
            },

		t.Errorf("MinIO %s: Failed to create HTTP request for testing the response when object Layer is set to `nil`.", instanceType)
	}
	// execute the object layer set to `nil` test.
	// `ExecObjectLayerAPINilTest` manages the operation.
	ExecObjectLayerAPINilTest(t, nilBucket, nilObject, instanceType, apiRouter, nilReq)
}

func TestAPIHeadObjectHandlerWithEncryption(t *testing.T) {
	globalPolicySys = NewPolicySys()

  // unrunnable.
  for (auto it : graph->sessions) {
    mutex_lock session_lock(it.first->mu);
    if (it.first->last_num_graph_nodes > op.node.id()) {
      it.second = strings::StrCat(
          "Operation '", op.node.DebugString(), "' was changed by ",
          mutation_type,
          " after it was run by a session. This mutation will have no effect, "
          "and will trigger an error in the future. Either don't modify "

```Python
some_variable: PlaneItem | CarItem
```

Aber wenn wir das in der Zuweisung `response_model=PlaneItem | CarItem` machen, erhalten wir eine Fehlermeldung, da Python versucht, eine **ungültige Operation** zwischen `PlaneItem` und `CarItem` durchzuführen, statt es als Typannotation zu interpretieren.

## Listen von Modellen

Genauso können Sie eine Response deklarieren, die eine Liste von Objekten ist.

///

### 태그 사용

`tags` 매개변수를 *경로 작동* 및 `APIRouter`와 함께 사용하여 태그에 할당할 수 있습니다:

```Python hl_lines="21  26"
{!../../docs_src/metadata/tutorial004.py!}
```

/// info

태그에 대한 자세한 내용은 [경로 작동 구성](path-operation-configuration.md#tags){.internal-link target=_blank}에서 읽어보세요.

///

### 문서 확인

이제 문서를 확인하면 모든 추가 메타데이터가 표시됩니다:

<img src="/img/tutorial/metadata/image02.png">

### 태그 순서

...경로는 다음과 같습니다:

```
/items/foo
```

/// info | "정보"

"경로"는 일반적으로 "엔드포인트" 또는 "라우트"라고도 불립니다.

///

API를 설계할 때 "경로"는 "관심사"와 "리소스"를 분리하기 위한 주요한 방법입니다.

#### 작동

"작동(Operation)"은 HTTP "메소드" 중 하나를 나타냅니다.

다음 중 하나이며:

* `POST`
* `GET`
* `PUT`
* `DELETE`

...흔히 사용되지 않는 것들도 있습니다:

* `OPTIONS`
* `HEAD`
* `PATCH`
* `TRACE`

    - [kubectl delete: < v1.4.0 client vs >=v1.4.0 cluster](#kubectl-delete--v140-client-vs-v140-cluster)
    - [DELETE operation in REST API](#delete-operation-in-rest-api)
  - [Action Required Before Upgrading](#action-required-before-upgrading)
- [optionally, remove the old secret](#optionally-remove-the-old-secret)