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

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

TcpTransportTrackerName = "libp2p.tcptransport"

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

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

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

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

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