@class PXDiscoveryFeedDataSource, NSArray, PHPhotoLibrary, NSObject, PXDiscoveryFeedGenerationSession; @protocol OS_dispatch_queue; @interface PXDiscoveryFeedDataSourceManager : PXSectionedDataSourceManager { PHPhotoLibrary *_photoLibrary; NSObject *_workQueue; NSArray *_assetCollections; PXDiscoveryFeedGenerationSession *_session; struct atomic_flag { _Atomic BOOL _Value; } _hasDispatchedCallToGetAdditionalItems; } @property (readonly, nonatomic) PXDiscoveryFeedDataSource *dataSource; - (id)init; - (id)createInitialDataSource; - (id)initWithPhotoLibrary:(id)a0; - (void).cxx_destruct; - (void)_handleMoreContentLoadedWithDataSource:(id)a0; - (void)_loadMoreContentWithCompletionHandler:(id /* block */)a0; - (id)_requestMemoryWithCount:(long long)a0 beforeDate:(id)a1; - (void)loadMoreContentWithCompletionHandler:(id /* block */)a0; @end