code: func GetTillerPodImage(client corev1.PodsGetter, namespace string) (string, error) {
  	selector := tillerPodLabels.AsSelector()
  	pod, err := getFirstRunningPod(client, namespace, selector)
  	if err != nil {
  		return "", err
  	}
  	for _, c := range pod.Spec.Containers {
  		if c.Name == "tiller" {
  			return c.Image, nil
  		}
  	}
  	return "", fmt.Errorf("could not find a tiller pod")
  }
docs: // GetTillerPodImage fetches the image of tiller pod running in the given namespace.