         }
     }
     
+    
     //MARK: - Helpers
     
+    /**
+    Returns the first and the last element taking into account the SugarRecordFinder options
+    
+    :returns: Tuple with the first and last index
+    */
     func indexes() -> (Int, Int)
     {
         var firstIndex: Int = 0

        }
    }
    
    func indexOfObject(object: T) -> Int
    {
        if (engine == SugarRecordEngine.SugarRecordEngineCoreData) {

        }
    }
    
    /**
    Returns the REALM database engine collection.
    - CoreData: Array with NSManagedObjects
    - Realm: RLMResults object
    
    :returns: original collection that depends on the database engine
    */
    func realCollection() -> AnyObject
    {
        if (engine == SugarRecordEngine.SugarRecordEngineCoreData) {
