(this as Object).notifyAll()
  }

  /**
   * Returns the recorded response triggered by `request`. Throws if the response isn't
   * enqueued before the timeout.
   */
  @Synchronized
  fun await(url: HttpUrl): RecordedResponse {
    val timeoutMillis = TimeUnit.NANOSECONDS.toMillis(System.nanoTime()) + TIMEOUT_MILLIS
    while (true) {
      val i = responses.iterator()
      while (i.hasNext()) {

                    endLatch.countDown();
                }
            });
        }

        // Start all threads
        startLatch.countDown();

        // Wait for completion
        assertTrue(endLatch.await(30, TimeUnit.SECONDS), "All threads should complete");
        executor.shutdown();

        // Then - All operations should succeed

rd island and mcdonald islands","honduras","hong kong","hungary","iceland","india","indonesia","iran","iraq","ireland","isle of man","israel","italy","jamaica","japan","jersey","jordan","kazakhstan","kenya","kiribati","north korea","south korea","kuwait","kyrgyzstan","laos","latvia","lebanon","lesotho","liberia","libya","liechtenstein","lithuania","luxembourg","macao","macedonia","madagascar","malawi","malaysia","maldives","mali","malta","marshall islands","martinique","mauritania","mauritius","...

Detalles sobre la sintaxis `async def` para *path operation functions* y algunos antecedentes sobre el código asíncrono, la concurrencia y el paralelismo.

## ¿Con prisa? { #in-a-hurry }

<abbr title="too long; didn't read - demasiado largo; no lo leí"><strong>TL;DR:</strong></abbr>

Si estás usando paquetes de terceros que te dicen que los llames con `await`, como:

```Python

    service.startAsync().awaitRunning();
    for (int i = 1; i < 10; i++) {
      service.runFirstBarrier.await();
      assertEquals(i, service.numberOfTimesRunCalled.get());
      service.runSecondBarrier.await();
    }
    service.runFirstBarrier.await();
    service.stopAsync();
    service.runSecondBarrier.await();
    service.stopAsync().awaitTerminated();
  }

    service.startAsync().awaitRunning();
    for (int i = 1; i < 10; i++) {
      service.runFirstBarrier.await();
      assertEquals(i, service.numberOfTimesRunCalled.get());
      service.runSecondBarrier.await();
    }
    service.runFirstBarrier.await();
    service.stopAsync();
    service.runSecondBarrier.await();
    service.stopAsync().awaitTerminated();
  }

      thread.start();
      // we want to wait until each thread is WAITING - one thread waiting inside CacheLoader.load
      // (in startSignal.await()), and the others waiting for that thread's result.
      while (thread.isAlive() && thread.getState() != Thread.State.WAITING) {
        Thread.yield();
      }
    }
    gettersStartedSignal.countDown();
    gettersComplete.await();

```Python
with open("file.txt") as file:
    file.read()
```

In recent versions of Python, there's also an **async context manager**. You would use it with `async with`:

```Python
async with lifespan(app):
    await do_stuff()
```

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

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

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

    boolean isRunning() {
      return running;
    }

        executor.execute(wrapper);
      }
      barrier.await(); // release the threads!
      barrier.await(); // wait for them all to complete
      assertEquals(1, task.get().intValue());
      assertEquals(1, counter.get());
    }
    executor.shutdown();
  }

  @J2ktIncompatible
  @GwtIncompatible // blocking wait
  public void testToString() throws Exception {