@interface WFBackgroundAssertion : NSObject + (id)backgroundAssertionWithName:(id)a0 expirationHandler:(id /* block */)a1; - (void)end; @end
@interface WFBackgroundAssertion : NSObject + (id)backgroundAssertionWithName:(id)a0 expirationHandler:(id /* block */)a1; - (void)end; @end