code: func supportsNodesHealthCheck(nodes []*v1.Node) bool {
  	for _, node := range nodes {
  		if !isAtLeastMinNodesHealthCheckVersion(node.Status.NodeInfo.KubeProxyVersion) {
  			return false
  		}
  	}
  	return true
  }
docs: // supportsNodesHealthCheck returns false if anyone of the nodes has version
  // lower than `minNodesHealthCheckVersion`.