code: func (h *Health) serviceNodesConnect(ws memdb.WatchSet, s *state.Store, args *structs.ServiceSpecificRequest) (uint64, structs.CheckServiceNodes, error) {
  	return s.CheckConnectServiceNodes(ws, args.ServiceName)
  }
docs: // The serviceNodes* functions below are the various lookup methods that
  // can be used by the ServiceNodes endpoint.