code: def register(model):
      
      from algoliasearch_django import AlgoliaIndex, register
  
      def _algolia_engine_wrapper(index_class):
          if not issubclass(index_class, AlgoliaIndex):
              raise ValueError('Wrapped class must subclass AlgoliaIndex.')
  
          register(model, index_class)
  
          return index_class
      return _algolia_engine_wrapper
docs: Register the given model class and wrapped AlgoliaIndex class with the Algolia engine:
  
      @register(Author)
      class AuthorIndex(AlgoliaIndex):
          pass