return getResponse(1, TimeUnit.MINUTES);
        }

        public RESPONSE getResponse(final long time, final TimeUnit unit) {
            try {
                final boolean isTimeout = !latch.await(time, unit);
                if (isTimeout) {
                    throw new SuggesterException("Request timeout. time:" + time + " unit:" + unit.name());
                }
                if (error != null) {

    Como sempre, no FastAPI você pode combinar `def` e `async def` conforme necessário.

    Se você precisar de uma atualização sobre quando usar qual, confira a seção _"Com pressa?"_ na documentação sobre [`async` e `await`](../async.md#in-a-hurry){.internal-link target=_blank}.

9. Esta *função de operação de rota* não está retornando dataclasses (embora pudesse), mas uma lista de dicionários com dados internos.

    public @Nullable Void call() throws InterruptedException {
      running = true;
      startLatch.countDown();
      stopLatch.await();
      running = false;
      return null;
    }

    public void waitForStart() throws InterruptedException {
      startLatch.await();
    }

    public void stop() {
      stopLatch.countDown();
    }

    public boolean isRunning() {

    🕧, FastAPI 👆 💪 🌀 `def` & `async def` 💪.

    🚥 👆 💪 ↗️ 🔃 🕐❔ ⚙️ ❔, ✅ 👅 📄 _"🏃 ❓" _ 🩺 🔃 <a href="https://fastapi.tiangolo.com/async/#in-a-hurry" target="_blank" class="internal-link">`async` &amp; `await`</a>.

9️⃣. 👉 *➡ 🛠️ 🔢* 🚫 🛬 🎻 (👐 ⚫️ 💪), ✋️ 📇 📖 ⏮️ 🔗 💽.

    FastAPI 🔜 ⚙️ `response_model` 🔢 (👈 🔌 🎻) 🗜 📨.

👆 💪 🌀 `dataclasses` ⏮️ 🎏 🆎 ✍ 📚 🎏 🌀 📨 🏗 📊 📊.

✅-📟 ✍ 💁‍♂ 🔛 👀 🌅 🎯 ℹ.

8. 注意，*路径操作函数*使用的是普通函数，不是异步函数；

    与往常一样，在 FastAPI 中，可以按需组合普通函数与异步函数；

    如果不清楚何时使用异步函数或普通函数，请参阅**急不可待？**一节中对 <a href="https://fastapi.tiangolo.com/async/#in-a-hurry" target="_blank" class="internal-link">`async` 与 `await`</a> 的说明；

9. *路径操作函数*返回的不是数据类（虽然它可以返回数据类），而是返回内含数据的字典列表；

    FastAPI 使用（包含数据类的） `response_model` 参数转换响应。

把 `dataclasses` 与其它类型注解组合在一起，可以组成不同形式的复杂数据结构。

更多内容详见上述代码内的注释。

## 深入学习

        override fun onFailure(
          hostname: String,
          e: IOException,
        ) {
          exception = e
          latch.countDown()
        }
      },
    )

    latch.await()

    return Pair(allAddresses, exception)
  }

  @Test
  fun testDnsRequestExternal() {
    assumeNetwork()

    val (allAddresses, exception) = dnsQuery("google.com")

    // (which will block) in the same thread.
    new Thread() {
      @Override
      public void run() {
        inputFuture.set(SLOW_FUNC_VALID_INPUT_DATA);
      }
    }.start();
    funcIsWaitingLatch.await();

    assertTrue(resultFuture.cancel(true));
    assertTrue(resultFuture.isCancelled());
    assertFalse(inputFuture.isCancelled());
    assertFalse(outputFuture.isCancelled());

    // (which will block) in the same thread.
    new Thread() {
      @Override
      public void run() {
        inputFuture.set(SLOW_FUNC_VALID_INPUT_DATA);
      }
    }.start();
    funcIsWaitingLatch.await();

    assertTrue(resultFuture.cancel(true));
    assertTrue(resultFuture.isCancelled());
    assertFalse(inputFuture.isCancelled());
    assertFalse(outputFuture.isCancelled());

                }
            }, "ProcessCloser-output-" + sessionId).start();

            try {
                latch.await(10, TimeUnit.SECONDS);
            } catch (final InterruptedException e) {
                logger.warn("Interrupted to wait a process.", e);
            }
            try {
                process.destroyForcibly().waitFor(processDestroyTimeout, TimeUnit.SECONDS);

          fail("")
        }
      },
    )
    assertThat(server.takeRequest().sequenceNumber)
      .isEqualTo(expectedSequenceNumber)
    responseDequeuedLatch!!.await()
    call.cancel()
    requestCanceledLatch!!.countDown()
    latch.await()
  }

  @ParameterizedTest
  @ArgumentsSource(ProtocolParamProvider::class)
  fun noRecoveryFromRefusedStreamWithRetryDisabled(
    protocol: Protocol,