}

// getRemoteInstanceTransport contains a roundtripper for external (not peers) servers
var remoteInstanceTransport atomic.Value

func setRemoteInstanceTransport(tr http.RoundTripper) {
	remoteInstanceTransport.Store(tr)
}

func getRemoteInstanceTransport() http.RoundTripper {
	rt, ok := remoteInstanceTransport.Load().(http.RoundTripper)
	if ok {
		return rt
	}
	return nil
}

  
  `k8s.io/apimachinery/pkg/util/httpstream` (including `spdy` and `wsstream`) remains available as a deprecated compatibility wrapper backed by `k8s.io/streaming`.