code: def search_variant_annotation_sets(self, variant_set_id):
          
          request = protocol.SearchVariantAnnotationSetsRequest()
          request.variant_set_id = variant_set_id
          request.page_size = pb.int(self._page_size)
          return self._run_search_request(
              request, "variantannotationsets",
              protocol.SearchVariantAnnotationSetsResponse)
docs: Returns an iterator over the Annotation Sets fulfilling the specified
          conditions from the specified variant set.
  
          :param str variant_set_id: The ID of the
              :class:`ga4gh.protocol.VariantSet` of interest.
          :return: An iterator over the :class:`ga4gh.protocol.AnnotationSet`
              objects defined by the query parameters.