code: def get_hierarchies_by_ids(self, *args, **kwargs):
          
          # Implemented from kitosid template for -
          # osid.resource.BinLookupSession.get_bins_by_ids
          catalogs = self._get_provider_session('hierarchy_lookup_session').get_hierarchies_by_ids(*args, **kwargs)
          cat_list = []
          for cat in catalogs:
              cat_list.append(Hierarchy(self._provider_manager, cat, self._runtime, self._proxy))
          return HierarchyList(cat_list)
docs: Pass through to provider HierarchyLookupSession.get_hierarchies_by_ids