@class NSObject; @protocol OS_dispatch_workloop; @interface RBSWorkloop : NSObject { NSObject<OS_dispatch_workloop> *_calloutWorkloop; NSObject<OS_dispatch_workloop> *_backgroundWorkloop; NSObject<OS_dispatch_workloop> *_syncingWorkloop; } + (void)performBackgroundWorkWithServiceClass:(unsigned int)a0 block:(id /* block */)a1; + (id)createBackgroundQueue:(id)a0; + (void)performBackgroundWork:(id /* block */)a0; + (id)sharedBackgroundWorkloop; + (id)sharedSyncingWorkloop; + (id)createSyncingQueue:(id)a0; - (void).cxx_destruct; @end