code: func (l *dynamicNamespaceLister) Get(name string) (*unstructured.Unstructured, error) {
  	obj, exists, err := l.indexer.GetByKey(l.namespace + "/" + name)
  	if err != nil {
  		return nil, err
  	}
  	if !exists {
  		return nil, errors.NewNotFound(l.gvr.GroupResource(), name)
  	}
  	return obj.(*unstructured.Unstructured), nil
  }
docs: // Get retrieves a resource from the indexer for a given namespace and name.