docs: def get_levels_of_description(self):
          """
          Returns an array of all levels of description defined in this AtoM instance.
          """
          if not hasattr(self, "levels_of_description"):
              self.levels_of_description = [
                  item["name"]
                  for item in self._get(urljoin(self.base_url, "taxonomies/34")).json()
              ]
  
          return self.levels_of_description