code: def delete(self):
          
          uris = [obj["resource_uri"] for obj in self.results()]
          data = self.resource._meta.api.resource_serialize({"objects": [], "deleted_objects": uris})
          self.resource._meta.api.http_resource("PATCH", self.resource._meta.resource_name, data=data)
  
          return len(uris)
docs: Deletes the results of this query, it first fetches all the items to be
          deletes and then issues a PATCH against the list uri of the resource.