docs: def clear_choice_ids(self, inline_region):
          """stub"""
          if (self.get_choice_ids_metadata().is_read_only() or
                  self.get_choice_ids_metadata().is_required()):
              raise NoAccess()
          if inline_region in self.my_osid_object_form._my_map['inlineRegions']:
              self.my_osid_object_form._my_map['inlineRegions'][inline_region]['choiceIds'] = \
                  deepcopy(self._choice_ids_metadata['default_object_values'][0])
          else:
              raise IllegalState('that inline region is invalid')