code: func (fs *filterService) GetPeers() ([]fab.Peer, error) {
  	peers, err := fs.discoveryService.GetPeers()
  	if err != nil {
  		return nil, err
  	}
  	targets := filterTargets(peers, fs.targetFilter)
  	return targets, nil
  }
docs: // GetPeers is used to get peers