public function get($id)
 {
     OpenpayConsole::trace('OpenpayApiDerivedResource @get');
     if ($this->isResourceListed($id)) {
         return $this->getResource($id);
     }
     $resource = parent::_retrieve($this->resourceName, $id, array('parent' => $this));
     $this->addResource($resource);
     return $resource;
 }