Socks5AddressType {.pure.} = enum
  IPv4 = 1, FQDN = 3, IPv6 = 4

Socks5AuthFailedError = object of Socks5Error

Socks5AuthMethod {.pure.} = enum
  NoAuth = 0, GSSAPI = 1, UsernamePassword = 2, NoAcceptableMethod = 255

Socks5Error = object of CatchableError

Socks5RequestCommand {.pure.} = enum
  Connect = 1, Bind = 2, UdpAssoc = 3

Socks5VersionError = object of Socks5Error

TorTransport = ref object of Transport
  transportAddress: TransportAddress
  tcpTransport: TcpTransport

TransportStartError = object of transport.TransportError

proc new(T: typedesc[TorTransport]; transportAddress: TransportAddress;
         flags: set[ServerFlags] = {}; upgrade: Upgrade): T:type {.public,
    ...raises: [].}

method accept(self: TorTransport): Future[Connection] {....gcsafe,
    stackTrace: false, ...gcsafe, raises: [], raises: [], tags: [RootEffect].}

method dial(self: TorTransport; hostname: string; address: MultiAddress): Future[
    Connection] {....gcsafe, stackTrace: false, ...gcsafe, raises: [], raises: [],
                  tags: [RootEffect].}

method handles(t: TorTransport; address: MultiAddress): bool {....gcsafe,
    raises: [], tags: [].}

method start(self: TorTransport; addrs: seq[MultiAddress]): Future[void] {.
    stackTrace: false, ...gcsafe, raises: [], raises: [], tags: [RootEffect].}

method stop(self: TorTransport): Future[void] {....gcsafe, stackTrace: false,
    ...gcsafe, raises: [], raises: [], tags: [RootEffect].}