Flow\JSONPath\AccessHelper::isCollectionType PHP Method

    public static function isCollectionType($collection)
    {
        return is_array($collection) || is_object($collection);
    }

 private function recurse(&$result, $data)
 {
     $result[] = $data;
     if (AccessHelper::isCollectionType($data)) {
         foreach (AccessHelper::arrayValues($data) as $key => $value) {
             $results[] = $value;
             if (AccessHelper::isCollectionType($value)) {
                 $this->recurse($result, $value);
             }
         }
     }
 }