@interface AppStoreKitInternal.JSGameCenter : NSObject <_TtP19AppStoreKitInternalP33_7B7F80098AC69273DB70D2D7451E823519JSGameCenterExports_> { void /* unknown type, empty encoding */ dataProvider; } - (id)init; - (id)fetchActivityFeedCards:(id)a0 :(long long)a1; - (id)fetchFriendsThatPlayGame:(id)a0; - (id)fetchAchievementSummaryForGame:(id)a0; - (id)fetchRecentlyPlayedGamesWithinSeconds:(id)a0 :(long long)a1 :(long long)a2; - (id)fetchGamesPopularWithFriends:(id)a0 :(long long)a1; - (void).cxx_destruct; - (id)fetchRengagementDataForLocalPlayer; - (id)fetchSuggestedFriends:(long long)a0; @end