code: func (s *specAggregator) GetAPIServiceInfo(apiServiceName string) (handler http.Handler, etag string, exists bool) {
  	s.rwMutex.RLock()
  	defer s.rwMutex.RUnlock()
  
  	if info, existingService := s.openAPISpecs[apiServiceName]; existingService {
  		return info.handler, info.etag, true
  	}
  	return nil, "", false
  }
docs: // GetAPIServiceSpec returns api service spec info