/// tip

注意，對新的 `AsyncClient` 需搭配 async/await —— 請求是非同步的。

///

/// warning

如果你的應用仰賴 lifespan 事件，`AsyncClient` 不會觸發這些事件。若要確保它們被觸發，請使用 [florimondmanca/asgi-lifespan](https://github.com/florimondmanca/asgi-lifespan#usage) 的 `LifespanManager`。

///

## 其他非同步函式呼叫 { #other-asynchronous-function-calls }

由於測試函式現在是非同步的，你也可以在測試中呼叫（並 `await`）其他 `async` 函式，和在程式碼其他地方一樣。

/// tip

# in compliance with, at your election, the Elastic License 2.0 or the Server
# Side Public License, v 1.

@defaultMessage Convert to URI
java.net.URL#getPath()
java.net.URL#getFile()

@defaultMessage Usage of getLocalHost is discouraged
java.net.InetAddress#getLocalHost()

@defaultMessage Use java.nio.file instead of java.io.File API
java.util.jar.JarFile
java.util.zip.ZipFile
java.io.File
java.io.FileInputStream

There's also the chance that for some reason you have a **spike** of usage of your API. Maybe it went viral, or maybe some other services or bots start using it. And you might want to have extra resources to be safe in those cases.

  runtime jitter. Watch the `Error` column in the benchmark results to see the run-to-run variance.
* Ensure to run enough warmup iterations to get the benchmark into a stable state. If you are unsure, don't change the defaults.
* Avoid CPU migrations by pinning your benchmarks to specific CPU cores. On Linux you can use `taskset`.

  }

  /**
   * Returns the empty multimap.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  // Casting is safe because the multimap will never hold any elements.
  @SuppressWarnings("unchecked")
  public static <K, V> ImmutableListMultimap<K, V> of() {
    return (ImmutableListMultimap<K, V>) EmptyImmutableListMultimap.INSTANCE;
  }

  @Override
  @ParametricNullness
  public final T next() {
    if (!hasNext()) {
      throw new NoSuchElementException();
    }
    state = State.NOT_READY;
    // Safe because hasNext() ensures that tryToComputeNext() has put a T into `next`.
    T result = uncheckedCastNullableTToT(next);
    next = null;
    return result;
  }

  /**

import java.util.Queue;
import org.jspecify.annotations.Nullable;

/**
 * An Iterator implementation which draws elements from a queue, removing them from the queue as it
 * iterates. This class is not thread safe.
 */
@GwtCompatible
final class ConsumingQueueIterator<T extends @Nullable Object> extends AbstractIterator<T> {
  private final Queue<T> queue;

  ConsumingQueueIterator(Queue<T> queue) {

  // TODO(cpovirk): explore ways of making ListenableFutureTask final. There are some valid reasons
  // such as BoundedQueueExecutorService to allow extends but it would be nice to make it final to
  // avoid unintended usage.

  // The execution list to hold our listeners.
  private final ExecutionList executionList = new ExecutionList();

  /**
   * Creates a {@code ListenableFutureTask} that will upon running, execute the given {@code

	errWildcardObjectLookup       = errors.New("Object wildcard used on non-object value")
	errWildcardArrayLookup        = errors.New("Array wildcard used on non-array value")
	errWildcardObjectUsageInvalid = errors.New("Invalid usage of object wildcard")
)

// jsonpathEval evaluates a JSON path and returns the value at the path.
// If the value should be considered flat (from wildcards) any array returned should be considered individual values.

     * Implementations can:</p>
     * <ul>
     *   <li>Return the same object if no processing is desired</li>
     *   <li>Return a pooled equivalent object to reduce memory usage</li>
     *   <li>Return a modified or optimized version of the object</li>
     * </ul>
     *
     * <p>The implementation must ensure that the returned object is functionally