private val body: Sink
    var done = false

    init {
      this.body =
        object : ForwardingSink(cacheOut) {
          @Throws(IOException::class)
          override fun close() {
            synchronized(this@Cache) {
              if (done) return
              done = true
              writeSuccessCount++
            }
            super.close()

					if kv.Match(BatchJobKV{Key: k, Value: v}) {
						return true
					}
				}
			}

			// None of the provided metadata filters match skip the object.
			return false
		}

		// if one of source or target is non MinIO, just replicate the top most version like `mc mirror`

But if you have specified a custom response class with `None` as its media type, FastAPI will use `application/json` for any additional response that has an associated model.

///

## Combining information { #combining-information }

You can also combine response information from multiple places, including the `response_model`, `status_code`, and `responses` parameters.

{* ../../docs_src/additional_responses/tutorial002_py310.py hl[17:22,26] *}

/// note | 注意

请注意，你必须直接使用 `FileResponse` 返回图片。

///

/// info | 信息

除非你在 `responses` 参数中明确指定不同的媒体类型，否则 FastAPI 会假设响应与主响应类具有相同的媒体类型（默认是 `application/json`）。

但是如果你指定了一个媒体类型为 `None` 的自定义响应类，FastAPI 会对任何具有关联模型的附加响应使用 `application/json`。

///

## 组合信息 { #combining-information }

											<la:link
												href="/search?q=${f:u(item)}${fe:facetQuery()}${fe:geoQuery()}">${f:h(item)}</la:link>
										</c:if>
										<c:if test="${3 <= s.index}">
											<la:link styleClass="d-none d-sm-inline-block"
												href="/search?q=${f:u(item)}${fe:facetQuery()}${fe:geoQuery()}">${f:h(item)}</la:link>
										</c:if>
									</c:forEach>
								</p>
							</div>
						</c:if>

        Suggester suggester = createSuggester();

        boolean created = suggester.createIndexIfNothing();

        assertTrue("Should create index when none exists", created);

        // Verify the index was created by checking we can query it
        suggester.refresh();
        assertEquals("Empty index should have 0 words", 0, suggester.getAllWordsNum());
    }

	}

	return nil
}

func (r RedisArgs) validateFormat(c redis.Conn) error {
	typeAvailable, err := redis.String(c.Do("TYPE", r.Key))
	if err != nil {
		return err
	}

	if typeAvailable != "none" {
		expectedType := "hash"
		if r.Format == event.AccessFormat {
			expectedType = "list"
		}

		if typeAvailable != expectedType {

## 宣告中繼資料 { #declare-metadata }

你可以宣告與 `Query` 相同的所有參數。

例如，若要為路徑參數 `item_id` 宣告 `title` 中繼資料，可以這樣寫：

{* ../../docs_src/path_params_numeric_validations/tutorial001_an_py310.py hl[10] *}

/// note

路徑參數一定是必填，因為它必須是路徑的一部分。即使你將其宣告為 `None` 或設定預設值，也不會有任何影響，它仍然是必填。

///

## 依需求調整參數順序 { #order-the-parameters-as-you-need }

/// tip

如果你使用 `Annotated`，這點大概沒那麼重要或必要。

///

假設你想把查詢參數 `q` 宣告為必要的 `str`。

import os

name = os.getenv("MY_NAME", "World")
print(f"Hello {name} from Python")
```

/// tip | 팁

[`os.getenv()`](https://docs.python.org/3.8/library/os.html#os.getenv) 의 두 번째 인자는 반환할 기본값입니다.

제공하지 않으면 기본값은 `None`이며, 여기서는 사용할 기본값으로 `"World"`를 제공합니다.

///

그러면 해당 파이썬 프로그램을 다음과 같이 호출할 수 있습니다:

//// tab | Linux, macOS, Windows Bash

<div class="termy">

```console
// 여기서는 아직 환경 변수를 설정하지 않습니다
$ python main.py

	// a single client certificate. Otherwise, the certificate to
	// policy mapping would be ambiguous.
	// However, we can filter all CA certificates and only check
	// whether they client has sent exactly one (non-CA) leaf certificate.
	const MaxIntermediateCAs = 10
	var (
		peerCertificates = make([]*x509.Certificate, 0, len(r.TLS.PeerCertificates))
		intermediates    *x509.CertPool
		numIntermediates int
	)