{* ../../docs_src/stream_data/tutorial001_py310.py ln[1:23] hl[20,23] *}

FastAPI 会将每个数据块原样交给 `StreamingResponse`，不会尝试将其转换为 JSON 或做类似处理。

### 非 async 的*路径操作函数* { #non-async-path-operation-functions }

你也可以使用常规的 `def` 函数（不带 `async`），并以相同方式使用 `yield`。

{* ../../docs_src/stream_data/tutorial001_py310.py ln[26:29] hl[27] *}

### 无需注解 { #no-annotation }

你其实不需要为流式二进制数据声明返回类型注解。

    }

    /**
     * Combines the two BitArrays using bitwise OR.
     *
     * <p>NOTE: Because of the use of atomics, if the other LockFreeBitArray is being mutated while
     * this operation is executing, not all of those new 1's may be set in the final state of this
     * LockFreeBitArray. The ONLY guarantee provided is that all the bits that were set in the other

                assertEquals("Structure size != 4", exception.getMessage());
            }
        }
    }

    @Test
    @DisplayName("Should not modify buffer during write operation")
    void testWriteDoesNotModifyBuffer() {
        // Given
        byte[] buffer = new byte[256];
        // Fill buffer with test pattern
        for (int i = 0; i < buffer.length; i++) {

Dieser Client könnte ein Browser mit einem Frontend sein, ein Code von jemand anderem, ein IoT-Gerät usw.

Sie könnten dem Client mitteilen müssen, dass:

* Der Client nicht genügend Berechtigungen für diese Operation hat.
* Der Client keinen Zugriff auf diese Ressource hat.
* Die Ressource, auf die der Client versucht hat, zuzugreifen, nicht existiert.
* usw.

	// Header indiicates last rtention update time on source
	MinIOSourceObjectLegalHoldTimestamp = "X-Minio-Source-Replication-LegalHold-Timestamp"
	// Header indicates a Tag operation was performed on one/more peers successfully, though the
	// current cluster does not have the object yet. This is in a site/bucket replication scenario.
	MinIOTaggingProxied = "X-Minio-Tagging-Proxied"

   * for a pair of them to match). Please consider carefully the implications of the number of
   * stripes, the intended concurrency level, and the typical number of keys used in a {@code
   * bulkGet(keys)} operation. See <a href="http://www.mathpages.com/home/kmath199.htm">Balls in
   * Bins model</a> for mathematical formulas that can be used to estimate the probability of
   * collisions.
   *
   * @param keys arbitrary non-null keys

        final String username = user.getName();
        final boolean isUpdate = StringUtil.isNotBlank(user.getId());

        if (logger.isDebugEnabled()) {
            logger.debug("User {} operation initiated: username={}, id={}", isUpdate ? "update" : "create", username,
                    user.getId() != null ? user.getId() : "new");
        }

        try {

{* ../../docs_src/metadata/tutorial004_py310.py hl[21,26] *}

/// info

En savoir plus sur les tags dans [Configuration de chemins d'accès](path-operation-configuration.md#tags).

///

### Consultez les documents { #check-the-docs }

Désormais, si vous consultez les documents, ils afficheront toutes les métadonnées supplémentaires :

	startOffset, length, err := rs.GetOffsetLength(actualPartSize)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	// maximum copy size for multipart objects in a single operation
	if isMaxObjectSize(length) {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrEntityTooLarge), r.URL)
		return
	}

	if isRemoteCopyRequired(ctx, srcBucket, dstBucket, objectAPI) {

#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
#       see the in-line comments for details.
#
#       There are tweaks for specific operating systems such as AIX, CygWin,
#       Darwin, MinGW, and NonStop.
#
#   (3) This script is generated from the Groovy template