pub fn country_code<T: IpAddress>(input: T) -> Option<&'static str>Expand description
Looks up the ISO 3166-1 alpha-2 country code for an IP address.
Accepts a string slice, owned String, Ipv4Addr, Ipv6Addr, or IpAddr.
Returns None if the address is not in any RIR delegated range, or if the
input is a string that cannot be parsed as an IP address.