TcpTransport = ref object of Transport
  servers*: seq[StreamServer]
  clients: array[Direction, seq[StreamTransport]]
  flags: set[ServerFlags]
  clientFlags: set[SocketFlags]
  acceptFuts: seq[Future[StreamTransport]]
  connectionsTimeout: Duration

TcpTransportError = object of transport.TransportError

TcpTransportTracker = ref object of TrackerBase
  opened*: uint64
  closed*: uint64

TcpTransportTrackerName = "libp2p.tcptransport"

proc connHandler(self: TcpTransport; client: StreamTransport;
                 observedAddr: Opt[MultiAddress]; dir: Direction): Future[
    Connection] {.stackTrace: false, ...gcsafe, raises: [], raises: [], raises: [],
                  tags: [RootEffect].}

proc new(T: typedesc[TcpTransport]; flags: set[ServerFlags] = {};
         upgrade: Upgrade; connectionsTimeout = 10.minutes): T:type {.public,
    ...raises: [].}

method dial(self: TcpTransport; hostname: string; address: MultiAddress;
            peerId: Opt[PeerId] = Opt.none(PeerId)): Future[Connection] {.
    stackTrace: false, ...gcsafe, raises: [], raises: [], raises: [],
    tags: [RootEffect].}

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

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

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