ioe: IOException,
        ) = TODO()

        override fun canceled(call: Call) = TODO()
      }
    val none: EventListener = EventListener.NONE
  }

  @Test
  fun eventListenerBuilder() {
    var builder: EventListener.Factory = EventListener.Factory { TODO() }
  }

  @Test
  fun formBody() {
    val formBody: FormBody = FormBody.Builder().build()

	public abstract fun lookup (Ljava/lang/String;)Ljava/util/List;
}

public final class okhttp3/Dns$Companion {
}

public abstract class okhttp3/EventListener {
	public static final field Companion Lokhttp3/EventListener$Companion;
	public static final field NONE Lokhttp3/EventListener;
	public fun <init> ()V
	public fun cacheConditionalHit (Lokhttp3/Call;Lokhttp3/Response;)V
	public fun cacheHit (Lokhttp3/Call;Lokhttp3/Response;)V

	public abstract fun lookup (Ljava/lang/String;)Ljava/util/List;
}

public final class okhttp3/Dns$Companion {
}

public abstract class okhttp3/EventListener {
	public static final field Companion Lokhttp3/EventListener$Companion;
	public static final field NONE Lokhttp3/EventListener;
	public fun <init> ()V
	public fun cacheConditionalHit (Lokhttp3/Call;Lokhttp3/Response;)V
	public fun cacheHit (Lokhttp3/Call;Lokhttp3/Response;)V

    val b = EventRecorder(enforceOrder = false)
    val c = EventRecorder(enforceOrder = false)
    val d = EventRecorder(enforceOrder = false)

    val abcd = (a.eventListener + b.eventListener) + (c.eventListener + d.eventListener)
    abcd.callStart(FailingCall())

    assertThat(a.takeEvent()).isInstanceOf<CallStart>()
    assertThat(a.eventSequence).isEmpty()

     * client.
     *
     * @see EventListener for semantics and restrictions on listener implementations.
     */
    fun eventListener(eventListener: EventListener) =
      apply {
        this.eventListenerFactory = eventListener.asFactory()
      }

    /**

    call.

    The `RequestBody.writeTo()` method may now retain a reference to the provided sink and
    hand it off to another thread to write to it after `writeTo` returns.

    The `EventListener` may now see requests and responses interleaved in ways not previously
    permitted. For example, a listener may receive `responseHeadersStart()` followed by

      MockResponse(body = "XXX"),
    )
    val connections: MutableList<RealConnection?> = ArrayList()
    val localClient =
      client
        .newBuilder()
        .eventListener(
          object : EventListener() {
            override fun connectionAcquired(
              call: Call,
              connection: Connection,
            ) {
              connections.add(connection as RealConnection)