explo new storm with more volatile

library/Class/NatureDoc.php

@@ -87,7 +87,7 @@ class NatureDocLoader extends Class_CosmoVar_ModelLoader {
   }
 
 
-  public function findAll($select = null) {
+  public function findAll($select = null) : array {
     if (isset($this->_all_instances))
       return $this->_all_instances;