@class NSMutableDictionary; @interface _NSFileAccessAsynchronousProcessAssertionScheduler : NSObject { NSMutableDictionary *_assertionsPerPID; struct os_unfair_lock_s { unsigned int _os_unfair_lock_opaque; } _lock; } + (id)sharedInstance; - (id)init; - (id)addAssertionWithName:(id)a0 forPID:(int)a1; - (void)removeAssertionWithToken:(id)a0; @end