code: func (lbp *Random) Choose(peers []fab.Peer) (fab.Peer, error) {
  	if len(peers) == 0 {
  		logger.Warn("No peers to choose from!")
  		return nil, nil
  	}
  
  	index := rand.Intn(len(peers))
  	logger.Debugf("Choosing peer at index %d", index)
  	return peers[index], nil
  }
docs: // Choose randomly chooses a peer from the list of peers