@class NSURLSessionTaskDependencyDescription, NSURLSessionTask; @interface NSURLSessionTaskDependency : NSObject @property (retain, nonatomic) NSURLSessionTaskDependencyDescription *taskDependencyDescription; @property (readonly, retain, nonatomic) NSURLSessionTask *parentTask; @property (readonly, retain, nonatomic) NSURLSessionTask *mainDocumentTask; + (id)taskDependencyWithMainDocumentTask:(id)a0; + (id)taskDependencyWithMainDocumentTask:(id)a0 taskDependencyDescription:(id)a1; + (id)taskDependencyWithParentTask:(id)a0 priority:(float)a1 exclusive:(BOOL)a2; - (id)init; - (void)dealloc; @end