code: func (v *Vibranium) ListPodNodes(ctx context.Context, opts *pb.ListNodesOptions) (*pb.Nodes, error) {
  	ns, err := v.cluster.ListPodNodes(ctx, opts.Podname, opts.All)
  	if err != nil {
  		return nil, err
  	}
  
  	nodes := []*pb.Node{}
  	for _, n := range ns {
  		nodes = append(nodes, toRPCNode(ctx, n))
  	}
  	return &pb.Nodes{Nodes: nodes}, nil
  }
docs: // ListPodNodes returns a list of node for pod