@class NSString; @interface SWSystemSleepAssertionProvider : NSObject <SWSystemSleepAssertionProviding> @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; + (id)sharedProvider; - (id)acquirePreventSystemSleepAssertionWithIdentifier:(id)a0; - (id)acquireSystemActivityAssertionWithIdentifier:(id)a0; @end