code: def unindex_objects(mapping_type, ids, es=None, index=None):
      
      if settings.ES_DISABLED:
          return
  
      for id_ in ids:
          mapping_type.unindex(id_, es=es, index=index)
docs: Remove documents of a specified mapping_type from the index.
  
      This allows for asynchronous deleting.
  
      If a mapping_type extends Indexable, you can add a ``pre_delete``
      hook for the model that it's based on like this::
  
          @receiver(dbsignals.pre_delete, sender=MyModel)
          def remove_from_index(sender, instance, **kw):
              from elasticutils.contrib.django import tasks
              tasks.unindex_objects.delay(MyMappingType, [instance.id])
  
      :arg mapping_type: the mapping type for these ids
      :arg ids: the list of ids of things to remove
      :arg es: The `Elasticsearch` to use. If you don't specify an
          `Elasticsearch`, it'll use `mapping_type.get_es()`.
      :arg index: The name of the index to use. If you don't specify one
          it'll use `mapping_type.get_index()`.