@ExperimentalOkHttpApi
  constructor(
    maxIdleConnections: Int = 5,
    keepAliveDuration: Long = 5,
    timeUnit: TimeUnit = TimeUnit.MINUTES,
    connectionListener: ConnectionListener = ConnectionListener.NONE,
  ) : this(
    taskRunner = TaskRunner.INSTANCE,
    maxIdleConnections = maxIdleConnections,
    keepAliveDuration = keepAliveDuration,
    timeUnit = timeUnit,
    connectionListener = connectionListener,
  )

    routePlanner: RoutePlanner? = null,
  ): RealConnectionPool {
    return RealConnectionPool(
      taskRunner = taskRunner,
      maxIdleConnections = maxIdleConnections,
      keepAliveDuration = 100L,
      timeUnit = TimeUnit.NANOSECONDS,
      connectionListener = ConnectionListener.NONE,
      exchangeFinderFactory = { pool, address, user ->
        FastFallbackExchangeFinder(