return nil, fmt.Errorf("unimplemented")
}

type destPortGenerator struct{}

func (destPortGenerator) permission(_, value string, _ bool) (*rbacpb.Permission, error) {
	portValue, err := convertToPort(value)
	if err != nil {
		return nil, err
	}
	return permissionDestinationPort(portValue), nil
}

func (destPortGenerator) principal(_, _ string, _ bool, _ bool) (*rbacpb.Principal, error) {