MenuTreeStorage::serializedFields

protected MenuTreeStorage::serializedFields()

protected function serializedFields() {
  if (empty($this->serializedFields)) {
    $schema = static::schemaDefinition();
    foreach ($schema['fields'] as $name => $field) {
      if (!empty($field['serialize'])) {
        $this->serializedFields[] = $name;
      }
    }
  }
  return $this->serializedFields;
}