]
          },
          "unit": "dtdurations"
        },
        "overrides": []
      },
      "gridPos": {
        "h": 4,
        "w": 4,
        "x": 0,
        "y": 54
      },
      "id": 89,
      "maxDataPoints": 100,
      "options": {
        "colorMode": "value",
        "graphMode": "none",
        "justifyMode": "auto",
        "orientation": "auto",

            (byte) 26, (byte) 18, (byte) 10, (byte) 2, (byte) 59, (byte) 51, (byte) 43, (byte) 35, (byte) 62, (byte) 54, (byte) 46,
            (byte) 38, (byte) 30, (byte) 22, (byte) 14, (byte) 6, (byte) 61, (byte) 53, (byte) 45, (byte) 37, (byte) 29, (byte) 21,

0000060 00 08 00 08 03 64 3c f9 f4 89 64 48 01 00 00 b8
0000070 01 00 00 07 00 00 00 72 2f 72 2e 7a 69 70 00 2f
0000080 00 d0 ff c2 54 8e 57 39 00 05 00 fa ff c2 54 8e
0000090 57 39 00 05 00 fa ff 00 05 00 fa ff 00 14 00 eb
00000a0 ff c2 54 8e 57 39 00 05 00 fa ff 00 05 00 fa ff
00000b0 00 14 00 eb ff 42 88 21 c4 00 00 14 00 eb ff 42
00000c0 88 21 c4 00 00 14 00 eb ff 42 88 21 c4 00 00 14

    // the representable doubles are 2^54 and 2^54 + 4
    // 2^54+1 is less than halfway between, so HALF_DOWN and HALF_UP will both go down.
    new RoundToDoubleTester(BigDecimal.valueOf(1L << 54).add(new BigDecimal(0.5)))
        .setExpectation(twoToThe54, DOWN, FLOOR, HALF_DOWN, HALF_UP, HALF_EVEN)
        .setExpectation(Math.nextUp(twoToThe54), CEILING, UP)
        .roundUnnecessaryShouldThrow()
        .test();

	ADD $2280, R25, R11                        // 2ba32391
	ADD $(2280<<12), R25, R11                  // ADD $9338880, R25, R11            // 2ba36391
	ADDW R13->5, R11, R7                       // 67158d0b
	ADD R25<<54, R17, R16                      // 30da198b
	ADDSW R12.SXTX<<1, R29, R7                 // a7e72c2b
	ADDS R24.UXTX<<4, R25, R21                 // 357338ab

        // Setup count (1 byte)
        buffer[51] = 0x00;

        // Reserved (1 byte)
        buffer[52] = 0x00;

        // Byte count (2 bytes)
        buffer[53] = 0x00;
        buffer[54] = 0x00;

        // Test decode
        int bytesDecoded = response.decode(buffer, 0);

        // Should decode at least the header
        assertTrue(bytesDecoded > 0);

	_ = x[ErrBucketRemoteLabelInUse-50]
	_ = x[ErrBucketRemoteArnTypeInvalid-51]
	_ = x[ErrBucketRemoteArnInvalid-52]
	_ = x[ErrBucketRemoteRemoveDisallowed-53]
	_ = x[ErrRemoteTargetNotVersionedError-54]
	_ = x[ErrReplicationSourceNotVersionedError-55]
	_ = x[ErrReplicationNeedsVersioningError-56]
	_ = x[ErrReplicationBucketNeedsVersioningError-57]
	_ = x[ErrReplicationDenyEditError-58]
	_ = x[ErrRemoteTargetDenyAddError-59]

                    |                              |                   |  +---+---+
                    |                              |                   |      |
                    | 5     +----------------+     |4      +------+ 3a |      |
                    |<------| OEK_encrypted' |<----+-------| EK_2 |<---|------+
                    |       +----------------+             +------+    |      |

## 常规 **FastAPI** 应用

添加回调前，首先看下常规 API 应用是什么样子。

常规 API 应用包含接收 `Invoice` 请求体的*路径操作*，还有包含回调 URL 的查询参数 `callback_url`。

这部分代码很常规，您对绝大多数代码应该都比较熟悉了：

{* ../../docs_src/openapi_callbacks/tutorial001.py hl[10:14,37:54] *}

/// tip | 提示

`callback_url` 查询参数使用 Pydantic 的 <a href="https://pydantic-docs.helpmanual.io/usage/types/#urls" class="external-link" target="_blank">URL</a> 类型。

///

 * including dots after the first colon. It matches IPv4 addresses as strings containing only
 * decimal digits and dots. This pattern matches strings like "a:.23" and "54" that are neither IP
 * addresses nor hostnames; they will be verified as IP addresses (which is a more strict
 * verification).
 */
private val VERIFY_AS_IP_ADDRESS = "([0-9a-fA-F]*:[0-9a-fA-F:.]*)|([\\d.]+)".toRegex()