text: //
  // Created by IVAN CHIRKOV on 21.04.15.
  //
  
  #import <Foundation/Foundation.h>
  
  typedef void (^NSOperationQueueCompletion) (void);
  
  @interface NSOperationQueue (LSDCompletion)
  
  - (void)setCompletion:(NSOperationQueueCompletion)completion;
  
  @end