*    119 : Ignored.
 *    120 : Valid.
 *    121 : Disallowed
 *    122 : Mapped inline to the sequence: [b2].
 *    123 : Mapped inline to the sequence: [b2a].
 *    124 : Mapped inline to the sequence: [b2, b3].
 *    125 : Mapped inline to the sequence: [b2a, b3].
 *    126 : Mapped inline to the sequence: [b2, b3a].
 *    127 : Mapped inline to the sequence: [b2a, b3a].
 *
 * The range goes until the beginning of the next range.
 *

Patrick Strawderman <******@****.***> 1765550827 -0800

Patrick Strawderman <******@****.***> 1765550827 -0800

	MOVB.W R27, -96(R13)                       // bb0d1a38
	MOVB R17, 2200(R13)                        // b1612239
	MOVH.P R7, -72(R4)                         // 87841b78
	MOVH.W R12, -125(R14)                      // cc3d1878
	MOVH R19, 3686(R26)                        // 53cf1c79
	MOVW R21, 34(R0)                           // 152002b8
	MOVD R25, -137(R17)                        // 397217f8

Austin Clements <******@****.***> 1765479333 -0500

- [CHANGELOG-1.29.md](./CHANGELOG-1.29.md)
- [CHANGELOG-1.28.md](./CHANGELOG-1.28.md)
- [CHANGELOG-1.27.md](./CHANGELOG-1.27.md)
- [CHANGELOG-1.26.md](./CHANGELOG-1.26.md)
- [CHANGELOG-1.25.md](./CHANGELOG-1.25.md)
- [CHANGELOG-1.24.md](./CHANGELOG-1.24.md)
- [CHANGELOG-1.23.md](./CHANGELOG-1.23.md)
- [CHANGELOG-1.22.md](./CHANGELOG-1.22.md)
- [CHANGELOG-1.21.md](./CHANGELOG-1.21.md)

reverts to the pre-Go 1.26 behavior.

### Go 1.25

Go 1.25 added a new `decoratemappings` setting that controls whether the Go
runtime annotates OS anonymous memory mappings with context about their
purpose. These annotations appear in /proc/self/maps and /proc/self/smaps as
"[anon: Go: ...]". This setting is only used on Linux. For Go 1.25, it defaults

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[4,22] *}

Cada ítem producido con `yield` se codifica como JSON y se envía en el campo `data:` de un evento SSE.

Si declaras el tipo de retorno como `AsyncIterable[Item]`, FastAPI lo usará para **validar**, **documentar** y **serializar** los datos usando Pydantic.

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[10:12,23] *}

/// tip | Consejo

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[4,22] *}

Each yielded item is encoded as JSON and sent in the `data:` field of an SSE event.

If you declare the return type as `AsyncIterable[Item]`, FastAPI will use it to **validate**, **document**, and **serialize** the data using Pydantic.

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[10:12,23] *}

/// tip

從 `fastapi.sse` 匯入 `EventSourceResponse`：

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[4,22] *}

每個 `yield` 的項目都會以 JSON 編碼並放在 SSE 事件的 `data:` 欄位中送出。

如果你把回傳型別宣告為 `AsyncIterable[Item]`，FastAPI 會用它來透過 Pydantic 進行**驗證**、**文件化**與**序列化**。

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[10:12,23] *}

/// tip

因為 Pydantic 會在 **Rust** 端進行序列化，如果你有宣告回傳型別，效能會比未宣告時高很多。

///