/**
   * Returns true if this stream is open. A stream is open until either:
   *
   *  * A `SYN_RESET` frame abnormally terminates the stream.
   *  * Both input and output streams have transmitted all data and headers.
   *
   * Note that the input stream may continue to yield data even after a stream reports itself as
   * not open. This is because input data is buffered.
   */
  val isOpen: Boolean
    get() {

        } else {
          writePing(false, INTERVAL_PING, 0)
          return@schedule pingIntervalNanos
        }
      }
    }
  }

  /**
   * Returns the number of [open streams][Http2Stream.isOpen] on this connection.
   */
  fun openStreamCount(): Int = this.withLock { streams.size }

  fun getStream(id: Int): Http2Stream? = this.withLock { streams[id] }

    }
    sink1.writeUtf8("def")
    sink1.close()
    assertFailsWith<ConnectionShutdownException> {
      connection.newStream(headerEntries("c", "cola"), true)
    }
    assertThat(stream1.isOpen).isTrue()
    assertThat(stream2.isOpen).isFalse()
    assertThat(connection.openStreamCount()).isEqualTo(1)

    // Verify the peer received what was expected.
    val synStream1 = peer.takeFrame()

func unstructureIstioType(spec any) (map[string]any, error) {
	b, err := yaml.Marshal(spec)
	if err != nil {
		return nil, err
	}
	iSpec := map[string]any{}
	err = yaml.Unmarshal(b, &iSpec)
	if err != nil {
		return nil, err
	}
	return iSpec, nil
}

func convertToUnsignedInt32Map(s []string) map[string]uint32 {
	out := make(map[string]uint32, len(s))
	for _, l := range s {

Aleksei Kotenko <******@****.***> 1712026131 +0100

		CommandShort: "Open admin web UI for a proxy",
		CommandLong:  `Open the admin dashboard for a proxy, like envoy and ztunnel pods`,
		CommandExample: `  # Open envoy admin dashboard for the productpage-123-456.default pod
  istioctl dashboard proxy productpage-123-456.default

  # Open envoy admin dashboard for one pod under a deployment
  istioctl dashboard proxy deployment/productpage-v1

You can:

* <a href="https://github.com/tiangolo" class="external-link" target="_blank">Follow me on **GitHub**</a>.
    * See other Open Source projects I have created that could help you.
    * Follow me to see when I create a new Open Source project.

    client.newWebSocket(request, this);

    // Trigger shutdown of the dispatcher's executor so this process exits immediately.
    client.dispatcher().executorService().shutdown();
  }

  @Override public void onOpen(WebSocket webSocket, Response response) {
    webSocket.send("Hello...");
    webSocket.send("...World!");
    webSocket.send(ByteString.decodeHex("deadbeef"));
    webSocket.close(1000, "Goodbye, World!");
  }

Możesz:

* <a href="https://github.com/tiangolo" class="external-link" target="_blank">Śledzić mnie na **GitHubie**</a>.
    * Zobacz inne projekty open source, które stworzyłem, a mogą być dla Ciebie pomocne.
    * Śledź mnie, aby dostać powiadomienie, gdy utworzę nowy projekt open source.

{!../../../docs_src/events/tutorial002.py!}
```

此处，`shutdown` 事件处理器函数在 `log.txt` 中写入一行文本 `Application shutdown`。

!!! info "说明"

    `open()` 函数中，`mode="a"` 指的是**追加**。因此这行文本会添加在文件已有内容之后，不会覆盖之前的内容。

!!! tip "提示"

    注意，本例使用 Python `open()` 标准函数与文件交互。

    这个函数执行 I/O（输入/输出）操作，需要等待内容写进磁盘。

    但 `open()` 函数不支持使用 `async` 与 `await`。

    因此，声明事件处理函数要使用 `def`，不能使用 `asnyc def`。

!!! info "说明"