code: def lookup_bulk(self, ResponseGroup="Large", **kwargs):
          
          response = self.api.ItemLookup(ResponseGroup=ResponseGroup, **kwargs)
          root = objectify.fromstring(response)
          if not hasattr(root.Items, 'Item'):
              return []
          return list(
              AmazonProduct(
                  item,
                  self.aws_associate_tag,
                  self,
                  region=self.region) for item in root.Items.Item
          )
docs: Lookup Amazon Products in bulk.
  
          Returns all products matching requested ASINs, ignoring invalid
          entries.
  
          :return:
              A list of  :class:`~.AmazonProduct` instances.