code: def _update_attribute_details(self, **update_props):
          
  
          tree_to_update = update_props['tree_to_update']
          xpath = self._data_map['_attr_citation']
  
          # Cannot write to remote file: remove the featureCatalogueCitation element
  
          self._attr_details_file_url = None
          remove_element(tree_to_update, xpath, True)
  
          return self._update_complex_list(**update_props)
docs: Update operation for ISO Attribute Details metadata: write to "MD_Metadata/featureType"