code: func (pn *peernet) Conns() []inet.Conn {
  	pn.RLock()
  	defer pn.RUnlock()
  
  	out := make([]inet.Conn, 0, len(pn.connsByPeer))
  	for _, cs := range pn.connsByPeer {
  		for c := range cs {
  			out = append(out, c)
  		}
  	}
  	return out
  }
docs: // Conns returns all the connections of this peer