} else if (requestBody.isDuplex()) {
          logger.log("--> END ${request.method} (duplex request body omitted)")
        } else if (requestBody.isOneShot()) {
          logger.log("--> END ${request.method} (one-shot body omitted)")
        } else {
          var buffer = Buffer()
          requestBody.writeTo(buffer)

          var gzippedLength: Long? = null

	}

	rulesMap := event.NewRulesMap(eventNames, pattern, event.TargetID{ID: mustGetUUID()})

	// Listen Publisher uses nonblocking publish and hence does not wait for slow subscribers.
	// Use buffered channel to take care of burst sends or slow w.Write()
	ch := make(chan event.Event, globalAPIConfig.getRequestsPoolCapacity())
	err := globalHTTPListen.Subscribe(mask, ch, ctx.Done(), func(ev event.Event) bool {

	}

	st, err := gridConn.NewStream(ctx, grid.HandlerTrace, payload)
	if err != nil {
		return
	}
	st.Results(func(b []byte) error {
		select {
		case traceCh <- b:
		default:
			// Do not block on slow receivers.
			// Just recycle the buffer.
			grid.PutByteBuffer(b)
		}
		return nil
	})
}

func (client *peerRESTClient) doListen(ctx context.Context, listenCh chan<- []byte, v url.Values) {

  }

  @GwtIncompatible // slow (~40s)
  public void testIterator_oneElement() {
    new IteratorTester<String>(
        5, UNMODIFIABLE, singleton("a"), IteratorTester.KnownOrder.KNOWN_ORDER) {
      @Override
      protected Iterator<String> newTargetIterator() {
        return of("a").iterator();
      }
    }.test();
  }

  @GwtIncompatible // slow (~30s)
  public void testIterator_general() {

So we have a dedicated thread for every socket that just reads frames and dispatches them.

The reader thread must never run application-layer code. Otherwise one slow stream can hold up the entire connection.

      )

    client =
      clientTestRule
        .newClientBuilder()
        .eventListenerFactory(clientTestRule.wrap(listener))
        .connectTimeout(60, TimeUnit.SECONDS) // Deliberately exacerbate slow fallbacks.
        .dns { dnsResults }
        .fastFallback(true)
        .build()
    url =
      serverIpv4
        .url("/")
        .newBuilder()
        .host("localhost")
        .build()

     * replaces the allowed ASCII whitespace characters with themselves and to set the minimum safe
     * character to 0x20. However this would slow down the escaping of simple strings that contain
     * \t, \n, or \r.
     */
    for (char c = MIN_ASCII_CONTROL_CHAR; c <= MAX_ASCII_CONTROL_CHAR; c++) {
      if (c != '\t' && c != '\n' && c != '\r') {

    int srcIndex = size() - 1;
    if (dstIndex < srcIndex) {
      // move last entry to deleted spot
      Object key = keys[srcIndex];
      keys[dstIndex] = key;
      values[dstIndex] = values[srcIndex];
      keys[srcIndex] = null;
      values[srcIndex] = null;

      // move the last entry to the removed spot, just like we moved the element
      entries[dstIndex] = entries[srcIndex];
      entries[srcIndex] = 0;

import org.junit.jupiter.api.Timeout
import org.junit.jupiter.api.extension.RegisterExtension
import org.junit.jupiter.params.ParameterizedTest
import org.junit.jupiter.params.provider.ArgumentsSource

@Timeout(30)
@Tag("Slow")
class CancelTest {
  @JvmField @RegisterExtension
  val platform = PlatformRule()

  lateinit var cancelMode: CancelMode
  lateinit var connectionType: ConnectionType

  private var threadToCancel: Thread? = null

{* ../../docs_src/dependencies/tutorial001_an_py310.py hl[9] *}

But then we get a `dict` in the parameter `commons` of the *path operation function*.

And we know that editors can't provide a lot of support (like completion) for `dict`s, because they can't know their keys and value types.

We can do better...

## What makes a dependency { #what-makes-a-dependency }