code: func (ms *dedupSource) Endpoints() ([]*endpoint.Endpoint, error) {
  	result := []*endpoint.Endpoint{}
  	collected := map[string]bool{}
  
  	endpoints, err := ms.source.Endpoints()
  	if err != nil {
  		return nil, err
  	}
  
  	for _, ep := range endpoints {
  		identifier := ep.DNSName + " / " + ep.Targets.String()
  
  		if _, ok := collected[identifier]; ok {
  			log.Debugf("Removing duplicate endpoint %s", ep)
  			continue
  		}
  
  		collected[identifier] = true
  		result = append(result, ep)
  	}
  
  	return result, nil
  }
docs: // Endpoints collects endpoints from its wrapped source and returns them without duplicates.