public function update($index, $type, $id, $data, $options = [])
{
$body = ['doc' => empty($data) ? new \stdClass() : $data];
if (isset($options["detect_noop"])) {
$body["detect_noop"] = $options["detect_noop"];
unset($options["detect_noop"]);
}
return $this->db->post([$index, $type, $id, '_update'], $options, Json::encode($body));
}