code: func (*Service) CreateNIC(c context.Context, req *crimson.CreateNICRequest) (*crimson.NIC, error) {
  	if err := createNIC(c, req.Nic); err != nil {
  		return nil, err
  	}
  	return req.Nic, nil
  }
docs: // CreateNIC handles a request to create a new network interface.