): Chain

    fun readTimeoutMillis(): Int

    fun withReadTimeout(
      timeout: Int,
      unit: TimeUnit,
    ): Chain

    fun writeTimeoutMillis(): Int

    fun withWriteTimeout(
      timeout: Int,
      unit: TimeUnit,
    ): Chain
  }

    return copy(readTimeoutMillis = checkDuration("readTimeout", timeout.toLong(), unit))
  }

  override fun writeTimeoutMillis(): Int = writeTimeoutMillis

  override fun withWriteTimeout(
    timeout: Int,
    unit: TimeUnit,
  ): Interceptor.Chain {
    check(exchange == null) { "Timeouts can't be adjusted in a network interceptor" }

 * Permitted to short-circuit and not call `Chain.proceed()`.
 * Permitted to retry and make multiple calls to `Chain.proceed()`.
 * Can adjust Call timeouts using withConnectTimeout, withReadTimeout, withWriteTimeout.

**Network Interceptors**

 * Able to operate on intermediate responses like redirects and retries.
 * Not invoked for cached responses that short-circuit the network.