.AddressFamily: ClassType
.AddressFamily <: Nat
.AF_ALG: .AddressFamily # unix only
.AF_APPLETALK: .AddressFamily
.AF_ASH: .AddressFamily # unix only
.AF_ATMPVC: .AddressFamily # unix only
.AF_ATMSVC: .AddressFamily # unix only
.AF_AX25: .AddressFamily
.AF_BRIDGE: .AddressFamily # unix only
.AF_BLUETOOTH: .AddressFamily
.AF_CAN: .AddressFamily # unix only
.AF_DECnet: .AddressFamily
.AF_ECONET: .AddressFamily # unix only
.AF_INET: .AddressFamily
.AF_INET6: .AddressFamily
.AF_IPX: .AddressFamily
.AF_IRDA: .AddressFamily # unix only
.AF_KEY: .AddressFamily # unix only
.AF_LLC: .AddressFamily # unix only
.AF_NETBEUI: .AddressFamily # unix only
.AF_NETLINK: .AddressFamily # unix only
.AF_NETROM: .AddressFamily
.AF_PACKET: .AddressFamily # unix only
.AF_PPPOX: .AddressFamily # unix only
.AF_QIPCRTR: .AddressFamily # unix only
.AF_RDS: .AddressFamily # unix only
.AF_ROSE: .AddressFamily
.AF_ROUTE: .AddressFamily # unix only
.AF_SECURITY: .AddressFamily # unix only
.AF_SNA: .AddressFamily
.AF_TIPC: .AddressFamily # unix only
.AF_UNIX: .AddressFamily # unix only
.AF_UNSPEC: .AddressFamily
.AF_VSOCK: .AddressFamily # unix only
.AF_WANPIPE: .AddressFamily # unix only
.AF_X25: .AddressFamily

.SO_ACCEPTCONN: Nat
.SO_BINDTODEVICE: Nat
.SO_BROADCAST: Nat
.SO_DEBUG: Nat
.SO_DOMAIN: Nat
.SO_DONTROUTE: Nat
.SO_ERROR: Nat
.SO_INCOMING_CPU: Nat
.SO_J1939_ERRQUEUE: Nat
.SO_J1939_FILTER: Nat
.SO_J1939_PROMISC: Nat
.SO_J1939_SEND_PRIO: Nat
.SO_KEEPALIVE: Nat
.SO_LINGER: Nat
.SO_MARK: Nat
.SO_OOBINLINE: Nat
.SO_PASSCRED: Nat
.SO_PASSSEC: Nat
.SO_PEERCRED: Nat
.SO_PEERSEC: Nat
.SO_PRIORITY: Nat
.SO_PROTOCOL: Nat
.SO_RCVBUF: Nat
.SO_RCVLOWAT: Nat
.SO_RCVTIMEO: Nat
.SO_REUSEADDR: Nat
.SO_REUSEPORT: Nat
.SO_SNDBUF: Nat
.SO_SNDLOWAT: Nat
.SO_SNDTIMEO: Nat
.SO_TYPE: Nat
.SO_VM_SOCKETS_BUFFER_MAX_SIZE: Nat
.SO_VM_SOCKETS_BUFFER_MIN_SIZE: Nat
.SO_VM_SOCKETS_BUFFER_SIZE: Nat

.SOL_ALG: Nat
.SOL_CAN_BASE: Nat
.SOL_CAN_RAW: Nat
.SOL_IP: Nat
.SOL_RDS: Nat
.SOL_SOCKET: Nat
.SOL_TCP: Nat
.SOL_TIPC: Nat
.SOL_UDP: Nat

.Socket!: ClassType
.Socket!.new: (family := Int, type := Int, proto := Int, fileno: Int or NoneType := NoneType) -> .Socket!