code: func MultiaddrNetMatch(tgt ma.Multiaddr, srcs []ma.Multiaddr) ma.Multiaddr {
  	for _, a := range srcs {
  		if MultiaddrProtocolsMatch(tgt, a) {
  			return a
  		}
  	}
  	return nil
  }
docs: // MultiaddrNetMatch returns the first Multiaddr found to match  network.