System/Library/PrivateFrameworks/CloudPhotoLibrary.framework
CPLPowerAssertion.h
@interface CPLPowerAssertion : NSObject
@property (class, nonatomic) BOOL hasEnoughPower;
+ (void)_releaseAssertion;
+ (void)disableSleep;
+ (id)powerAssertionStatus;
+ (void)enableSleep;
+ (void)_retainAssertion;
+ (void)_doProtected:(id /* block */)a0;
@end