proc dispatchPutVal(switch: Switch; peer: PeerId; key: Key; value: seq[byte]): InternalRaisesFuture[
    void, (CancelledError, DialFailedError, LPStreamError)] {....stackTrace: false,
    raises: [], gcsafe, tags: [RootEffect], forbids: [].}

proc handlePutValue(kad: KadDHT; conn: Connection; msg: Message): InternalRaisesFuture[
    void, (CancelledError,)] {....stackTrace: false, raises: [], gcsafe,
                               tags: [RootEffect], forbids: [].}

proc putValue(kad: KadDHT; key: Key; value: seq[byte]): InternalRaisesFuture[
    Result[void, string], (CancelledError,)] {....gcsafe, stackTrace: false,
    raises: [], gcsafe, tags: [RootEffect], forbids: [].}