⚫️ 🔜 🔬 🗄 ⏮️ `anyOf`.

👈, ⚙️ 🐩 🐍 🆎 🔑 <a href="https://docs.python.org/3/library/typing.html#typing.Union" class="external-link" target="_blank">`typing.Union`</a>:

/// note

🕐❔ ⚖ <a href="https://docs.pydantic.dev/latest/concepts/types/#unions" class="external-link" target="_blank">`Union`</a>, 🔌 🏆 🎯 🆎 🥇, ⏩ 🌘 🎯 🆎. 🖼 🔛, 🌖 🎯 `PlaneItem` 👟 ⏭ `CarItem` `Union[PlaneItem, CarItem]`.

///

## 선택적 매개변수

같은 방법으로 기본값을 `None`으로 설정하여 선택적 매개변수를 선언할 수 있습니다:

{* ../../docs_src/query_params/tutorial002.py hl[9] *}

이 경우 함수 매개변수 `q`는 선택적이며 기본값으로 `None` 값이 됩니다.

/// check | 확인

**FastAPI**는 `item_id`가 경로 매개변수이고 `q`는 경로 매개변수가 아닌 쿼리 매개변수라는 것을 알 정도로 충분히 똑똑합니다.

///

/// note | 참고

FastAPI는 `q`가 `= None`이므로 선택적이라는 것을 인지합니다.

```

### Access Control Configuration Variables

Either `MINIO_IDENTITY_OPENID_ROLE_POLICY` (recommended) or `MINIO_IDENTITY_OPENID_CLAIM_NAME` must be specified but not both. See the section Access Control Policies to understand the differences between the two.

### Is concurrency better than parallelism? { #is-concurrency-better-than-parallelism }

Nope! That's not the moral of the story.

Concurrency is different than parallelism. And it is better on **specific** scenarios that involve a lot of waiting. Because of that, it generally is a lot better than parallelism for web application development. But not for everything.

So, to balance that out, imagine the following short story:

        assertEquals("FFFF", Hexdump.toHexString(-1L, 4));
    }

    @Test
    @DisplayName("Should convert byte array to hex string")
    void testToHexStringByteArray() {
        // Note: The implementation has a bug - it ignores the srcIndex parameter!
        // The third parameter is the size of the output string in characters
        // size = number of hex characters to output

        DirectoryCacheEntry entry = directoryCache.get(directoryPath);
        if (entry == null)
            return;

        // Handle lease break by updating cache behavior
        // Only process if newState is not NONE (0) - a valid lease state
        if (newState != 0) {
            if ((newState & Smb2LeaseState.SMB2_LEASE_READ_CACHING) == 0) {
                // Lost read cache - invalidate directory cache

    }

    // Test script generation with multiple labels
    public void test_execute_scriptGenerationWithMultipleLabels() {
        // This test verifies that the job executes correctly
        // Note: We can't easily test the actual script generation because the mock doesn't call the processor

        String result = updateLabelJob.execute();
        assertNotNull(result);

        assertNotNull("First instance should not be null", target1);
        assertNotNull("Second instance should not be null", target2);
        assertNotSame("Instances should be different objects", target1, target2);
    }

    public void test_class_has_proper_annotations() {
        // Verify the class doesn't have any inappropriate annotations

{* ../../docs_src/websockets/tutorial001.py hl[2,6:38,41:43] *}

## Criando um `websocket`

Em sua aplicação **FastAPI**, crie um `websocket`:

{*../../docs_src/websockets/tutorial001.py hl[46:47]*}

/// note | Detalhes Técnicos

Você também poderia usar `from starlette.websockets import WebSocket`.

> Use the same username and password created in the previous steps.

```
[foobar]
region = us-east-1
aws_access_key_id = foobar
aws_secret_access_key = foo12345
```

> NOTE: In the following commands `--role-arn` and `--role-session-name` are not meaningful for MinIO and can be set to any value satisfying the command line requirements.

```