public static function prepareSingleItem($data_item, $convert_type)
 {
     $collection_item = new BackendlessCollection($data_item);
     switch ($convert_type) {
         case "std_class":
             return $collection_item->convertToStdClasses();
         case "user_class":
             return $collection_item->convertToUserClasses();
         case "array":
             return $collection_item->convertToArray();
     }
 }