pkg go/types, type TypeParamList struct
pkg go/types, type Union struct
pkg net, func TCPAddrFromAddrPort(netip.AddrPort) *TCPAddr
pkg net, func UDPAddrFromAddrPort(netip.AddrPort) *UDPAddr
pkg net, method (*Resolver) LookupNetIP(context.Context, string, string) ([]netip.Addr, error)
pkg net, method (*TCPAddr) AddrPort() netip.AddrPort
pkg net, method (*UDPAddr) AddrPort() netip.AddrPort

	for _, addr := range addrs {
		ips = append(ips, addr.(*IPAddr).IP)
	}
	return ips, nil
}

// LookupNetIP looks up host using the local resolver.
// It returns a slice of that host's IP addresses of the type specified by
// network.
// The network must be one of "ip", "ip4" or "ip6".
func (r *Resolver) LookupNetIP(ctx context.Context, network, host string) ([]netip.Addr, error) {