// create a new libp2p Host that listens on a random TCP port
h, err := libp2p.New(libp2p.ListenAddrStrings(“/ip4/0.0.0.0/tcp/0”))
// create a new libp2p Host that listens on a random TCP port
h, err := libp2p.New(libp2p.ListenAddrStrings(“/ip4/0.0.0.0/tcp/0”))