override fun toString(): String {
    return "Connection{${route.address.url.host}:${route.address.url.port}," +
      " proxy=${route.proxy}" +
      " hostAddress=${route.socketAddress}" +
      " cipherSuite=${handshake?.cipherSuite ?: "none"}" +
      " protocol=$protocol}"
  }

  companion object {
    const val IDLE_CONNECTION_HEALTHY_NS = 10_000_000_000 // 10 seconds.

    fun newTestConnection(

        }
      }

      val certificatePinner = address.certificatePinner!!

      val handshake =
        Handshake(
          unverifiedHandshake.tlsVersion,
          unverifiedHandshake.cipherSuite,
          unverifiedHandshake.localCertificates,
        ) {
          certificatePinner.certificateChainCleaner!!.clean(
            unverifiedHandshake.peerCertificates,
            address.url.host,