}

  override fun noNewExchanges(connection: RealConnection) {
  }

  override fun doExtensiveHealthChecks(): Boolean = false

  override fun isCanceled(): Boolean = false

  override fun candidateConnection(): RealConnection? = null

  override fun proxySelectStart(url: HttpUrl) {
  }

  override fun proxySelectEnd(
    url: HttpUrl,
    proxies: List<Proxy>,
  ) {
  }

  override fun doExtensiveHealthChecks(): Boolean {
    return chain.request.method != "GET"
  }

  override fun isCanceled(): Boolean {
    return call.isCanceled()
  }

  override fun candidateConnection(): RealConnection? {
    return call.connection
  }

  override fun proxySelectStart(url: HttpUrl) {
    eventListener.proxySelectStart(call, url)
  }

  override fun proxySelectEnd(

  fun connectionConnectionClosed(connection: RealConnection)

  fun noNewExchanges(connection: RealConnection)

  fun doExtensiveHealthChecks(): Boolean

  fun isCanceled(): Boolean

  fun candidateConnection(): RealConnection?

  fun proxySelectStart(url: HttpUrl)

  fun proxySelectEnd(
    url: HttpUrl,
    proxies: List<Proxy>,
  )

  fun dnsStart(socketHost: String)

  fun dnsEnd(

   */
  private fun planReuseCallConnection(): ReusePlan? {
    // This may be mutated by releaseConnectionNoEvents()!
    val candidate = connectionUser.candidateConnection() ?: return null

    // Make sure this connection is healthy & eligible for new exchanges. If it's no longer needed
    // then we're on the hook to close it.