code: func (s *ChainService) AddedNodeInfo() []*ServerPeer {
  	replyChan := make(chan []*ServerPeer)
  
  	select {
  	case s.query <- getAddedNodesMsg{reply: replyChan}:
  		return <-replyChan
  	case <-s.quit:
  		return nil
  	}
  }
docs: // AddedNodeInfo returns an array of btcjson.GetAddedNodeInfoResult structures
  // describing the persistent (added) nodes.