[](const OC::HeaderOptions & headerOptions, const OC::OCRepresentation & ocRep,
const int errorCode, const int sqNum, std::string id, ObserveNotificationCallback callback)
{
[](const OC::HeaderOptions & headerOptions, const OC::OCRepresentation & ocRep,
const int errorCode, const int sqNum, std::string id, ObserveNotificationCallback callback)
{