docs: def _norm_perm_list_from_perm_dict(self, perm_dict):
          """Return a minimal, ordered, hashable list of subjects and permissions."""
          high_perm_dict = self._highest_perm_dict_from_perm_dict(perm_dict)
          return [
              [k, list(sorted(high_perm_dict[k]))]
              for k in ORDERED_PERM_LIST
              if high_perm_dict.get(k, False)
          ]