code: func (*Service) ListNICs(c context.Context, req *crimson.ListNICsRequest) (*crimson.ListNICsResponse, error) {
  	nics, err := listNICs(c, database.Get(c), req)
  	if err != nil {
  		return nil, err
  	}
  	return &crimson.ListNICsResponse{
  		Nics: nics,
  	}, nil
  }
docs: // ListNICs handles a request to list network interfaces.