proc dial(self: RelayTransport; ma: MultiAddress): InternalRaisesFuture[
    Connection, (RelayDialError, CancelledError)] {....stackTrace: false,
    raises: [], gcsafe, raises: [], tags: [RootEffect], forbids: [].}

proc new(T: typedesc[RelayTransport]; cl: RelayClient; upgrader: Upgrade): T:type {.
    ...raises: [].}

method accept(self: RelayTransport): InternalRaisesFuture[Connection,
    (TransportError, CancelledError)] {....stackTrace: false, raises: [], gcsafe,
                                        raises: [], tags: [RootEffect],
                                        forbids: [].}

method dial(self: RelayTransport; hostname: string; ma: MultiAddress;
            peerId: Opt[PeerId] = Opt.none(PeerId)): InternalRaisesFuture[
    Connection, (TransportError, CancelledError)] {....stackTrace: false,
    raises: [], gcsafe, raises: [], tags: [RootEffect], forbids: [].}

method handles(self: RelayTransport; ma: MultiAddress): bool {....gcsafe,
    raises: [], tags: [], forbids: [].}

method start(self: RelayTransport; ma: seq[MultiAddress]): InternalRaisesFuture[
    void, (LPError, TransportError, CancelledError)] {....stackTrace: false,
    raises: [], gcsafe, raises: [], tags: [RootEffect], forbids: [].}

method stop(self: RelayTransport): InternalRaisesFuture[void, void] {.
    ...stackTrace: false, raises: [], gcsafe, raises: [], tags: [RootEffect],
    forbids: [].}