seekret.go
func (s *Seekret) GroupObjectsByMetadata(k string) map[string][]models.Object {
	return models.GroupObjectsByMetadata(s.objectList, k)
}
func (s *Seekret) GroupObjectsByMetadata(k string) map[string][]models.Object {
	return models.GroupObjectsByMetadata(s.objectList, k)
}
// GroupObjectsByMetadata returns a map with all objects grouped by specific
// metadata key.