proc listen(self: TCPServer; port: int64; bindAddress: string = "*"): Error {.
gcsafe,
    locks: 0, raises: [], tags: []
.}

proc isConnectionAvailable(self: TCPServer): bool {.
gcsafe, locks: 0, raises: [],
    tags: []
.}

proc takeConnection(self: TCPServer): StreamPeerTCP {.
gcsafe, locks: 0,
    raises: [Exception], tags: [RootEffect]
.}

proc stop(self: TCPServer) {.
gcsafe, locks: 0, raises: [], tags: []
.}