docs: func getCABundleTransport() *http.Transport {
  	return &http.Transport{
  		Proxy: http.ProxyFromEnvironment,
  		DialContext: (&net.Dialer{
  			Timeout:   30 * time.Second,
  			KeepAlive: 30 * time.Second,
  			DualStack: true,
  		}).DialContext,
  		MaxIdleConns:          100,
  		IdleConnTimeout:       90 * time.Second,
  		TLSHandshakeTimeout:   10 * time.Second,
  		ExpectContinueTimeout: 1 * time.Second,
  	}
  }