@class NSString; @interface _GEOOfflineSupportTileGroupObserver : NSObject <GEOResourceManifestTileGroupObserver> @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (void)resourceManifestManager:(id)a0 didChangeActiveTileGroup:(id)a1 fromOldTileGroup:(id)a2; @end