NameResolver = ref object of RootObj

proc getHostname(ma: MultiAddress): string {....raises: [Defect],
    tags: [RootEffect].}

proc resolveMAddress(self: NameResolver; address: MultiAddress): Future[
    seq[MultiAddress]] {.stackTrace: false, ...gcsafe, raises: [Defect],
                         raises: [Defect], tags: [RootEffect].}

method resolveIp(self: NameResolver; address: string; port: Port;
                 domain: Domain = Domain.AF_UNSPEC): Future[
    seq[TransportAddress]] {.base, stackTrace: false, ...gcsafe, raises: [Defect],
                             raises: [Defect], tags: [RootEffect].}

method resolveTxt(self: NameResolver; address: string): Future[seq[string]] {.
    base, stackTrace: false, ...gcsafe, raises: [Defect], raises: [Defect],
    tags: [RootEffect].}