public function fetchEntityGroup(Entity $obj_entity)
{
$arr_results = $this->obj_gateway->withSchema($this->obj_schema)->withTransaction($this->str_transaction_id)->gql("SELECT * FROM `" . $this->obj_schema->getKind() . "` WHERE __key__ HAS ANCESTOR @ancestorKey", ['ancestorKey' => $obj_entity]);
$this->str_last_cursor = $this->obj_gateway->getEndCursor();
return $arr_results;
}