text: /*
                         * This header is generated by classdump-dyld 1.5
                         * on Tuesday, November 10, 2020 at 10:15:58 PM Mountain Standard Time
                         * Operating System: Version 14.2 (Build 18K57)
                         * Image Source: /System/Library/PrivateFrameworks/MediaPlaybackCore.framework/MediaPlaybackCore
                         * classdump-dyld is licensed under GPLv3, Copyright © 2013-2016 by Elias Limneos. Updated by Kevin Bradley.
                         */
  
  @class NSError, NSArray;
  
  
  @protocol MPMiddlewareOperation <NSObject>
  @property (nonatomic,readonly) NSError * error; 
  @property (nonatomic,copy) id invalidationHandler; 
  @property (nonatomic,readonly) NSArray * invalidationObservers; 
  @optional
  -(id)timeoutDescription;
  
  @required
  -(NSError *)error;
  -(void)setInvalidationHandler:(/*^block*/id)arg1;
  -(id)invalidationHandler;
  -(NSArray *)invalidationObservers;
  
  @end
  
  