text: //
  //  PictureCollection.h
  //  PicDownloader
  //
  //  Created by Rob Napier on 8/23/13.
  //  Copyright (c) 2013 Rob Napier. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @class Picture;
  
  @interface PictureCollection : NSObject
  @property (nonatomic, readonly) NSUInteger count;
  
  - (instancetype)initWithURL:(NSURL *)URL;
  - (Picture *)pictureAtIndex:(NSUInteger)index;
  - (void)reset;
  @end
  