if (newRouteSelector == null) {
      newRouteSelector =
        RouteSelector(
          address = address,
          routeDatabase = routeDatabase,
          call = call,
          fastFallback = fastFallback,
        )
      routeSelector = newRouteSelector
    }

    // List available IP addresses for the current proxy. This may block in Dns.lookup().

      socketReadTimeoutMillis = chain.readTimeoutMillis,
      pingIntervalMillis = client.pingIntervalMillis,
      retryOnConnectionFailure = client.retryOnConnectionFailure,
      fastFallback = client.fastFallback,
      address = address,
      routeDatabase = client.routeDatabase,
      call = call,
      request = call.request(),
    )
  }

  override fun close() {
    taskFaker.close()

     * wasted resources.
     *
     * Defaults to enabled, call with [fastFallback] = false to revert to 4.x behaviour.
     *
     * [rfc_6555]: https://datatracker.ietf.org/doc/html/rfc6555
     */
    fun fastFallback(fastFallback: Boolean) =
      apply {
        this.fastFallback = fastFallback
      }

    /**

          retryOnConnectionFailure = chain.retryOnConnectionFailure,
          fastFallback = client.fastFallback,
          address = chain.address(request.url),
          routeDatabase = client.routeDatabase,
          call = this,
          request = request,
        )
      this.exchangeFinder =
        when {
          client.fastFallback -> FastFallbackExchangeFinder(routePlanner, client.taskRunner)

	public final fun dispatcher ()Lokhttp3/Dispatcher;
	public final fun dns ()Lokhttp3/Dns;
	public final fun eventListenerFactory ()Lokhttp3/EventListener$Factory;
	public final fun fastFallback ()Z
	public final fun followRedirects ()Z
	public final fun followSslRedirects ()Z
	public final fun hostnameVerifier ()Ljavax/net/ssl/HostnameVerifier;
	public final fun interceptors ()Ljava/util/List;

## Version 5.0.0-alpha.11

_2022-12-24_

 *  New: Enable fast fallback by default. It's our implementation of Happy Eyeballs,
    [RFC 8305][rfc_8305]. Disable with `OkHttpClient.Builder.fastFallback(false)`.
 *  Fix: Don't log response bodies for server-sent events.
 *  Fix: Skip early hints (status code 103) responses.
 *  Fix: Don't log sensitive headers in `Request.toString()`.

	public final fun dispatcher ()Lokhttp3/Dispatcher;
	public final fun dns ()Lokhttp3/Dns;
	public final fun eventListenerFactory ()Lokhttp3/EventListener$Factory;
	public final fun fastFallback ()Z
	public final fun followRedirects ()Z
	public final fun followSslRedirects ()Z
	public final fun hostnameVerifier ()Ljavax/net/ssl/HostnameVerifier;
	public final fun interceptors ()Ljava/util/List;