code: func KubernetesIsCIVersion(version string) bool {
  	subs := kubeBucketPrefixes.FindAllStringSubmatch(version, 1)
  	if len(subs) == 1 && len(subs[0]) == 4 && strings.HasPrefix(subs[0][2], "ci") {
  		return true
  	}
  	return false
  }
docs: // KubernetesIsCIVersion checks if user requested CI version