Address objects for network connections.
| Class | IPv4Address | An IPv4Address represents the address of an IPv4 socket endpoint. |
| Class | IPv6Address | An IPv6Address represents the address of an IPv6 socket endpoint. |
| Class | HostnameAddress | A HostnameAddress represents the address of a HostnameEndpoint. |
| Class | UNIXAddress | Object representing a UNIX socket endpoint. |
| Class | _ProcessAddress | An interfaces.IAddress provider for process transports. |
| Class | _ServerFactoryIPv4Address | Backwards compatibility hack. Just like IPv4Address in practice. |