code: func RandomAddr() *BzzAddr {
  	key, err := crypto.GenerateKey()
  	if err != nil {
  		panic("unable to generate key")
  	}
  	node := enode.NewV4(&key.PublicKey, net.IP{127, 0, 0, 1}, 30303, 30303)
  	return NewAddr(node)
  }
docs: // RandomAddr is a utility method generating an address from a public key