@class _MPLazySectionedCollectionStorage; @protocol MPLazySectionedCollectionDataSource; @interface MPLazySectionedCollection : MPSectionedCollection { _MPLazySectionedCollectionStorage *_storage; struct os_unfair_recursive_lock_s { struct os_unfair_lock_s { unsigned int _os_unfair_lock_opaque; } ourl_lock; unsigned int ourl_count; } _lock; } @property (retain, nonatomic) id<MPLazySectionedCollectionDataSource> dataSource; + (BOOL)supportsSecureCoding; - (id)allItems; - (void)enumerateItemsUsingBlock:(id /* block */)a0; - (void)dealloc; - (id)firstSection; - (id)lastItem; - (id)allSections; - (id)identifiersForSectionAtIndex:(long long)a0; - (long long)numberOfItemsInSection:(long long)a0; - (BOOL)hasSameContentAsSectionedCollection:(id)a0; - (id)initWithDataSource:(id)a0; - (id)itemsInSectionAtIndex:(long long)a0; - (id)itemAtIndexPath:(id)a0; - (long long)numberOfSections; - (id)lastSection; - (id)sectionAtIndex:(long long)a0; - (void).cxx_destruct; - (id)firstItem; - (id)indexPathForItemWithIdentifiersIntersectingSet:(id)a0; - (id)_safeStateDumpObject; - (void)enumerateItemsInSectionAtIndex:(long long)a0 usingBlock:(id /* block */)a1; - (id)identifiersForItemAtIndexPath:(id)a0; - (id)mutableCopyWithZone:(struct _NSZone { } *)a0; - (id)copyWithZone:(struct _NSZone { } *)a0; - (void)enumerateSectionsUsingBlock:(id /* block */)a0; @end