@interface PBFGalleryMutableDataProvider : PBFPosterGalleryDataProvider - (BOOL)_isSectionIdentifierValid:(id)a0; - (BOOL)_isSectionTypeValid:(long long)a0; - (BOOL)_isValidItem:(id)a0 withinSectionIdentifier:(id)a1; - (void)addSectionWithIdentifier:(id)a0 localizedTitle:(id)a1 type:(long long)a2 items:(id)a3; - (void)addToSection:(id)a0 item:(id)a1; - (void)configureForGallery:(id)a0; - (void)executeBulkUpdate:(id /* block */)a0; - (void)insertSectionWithIdentifier:(id)a0 toIndex:(unsigned long long)a1 localizedTitle:(id)a2 localizedSubtitle:(id)a3 type:(long long)a4 items:(id)a5; - (void)removeFromSection:(id)a0 item:(id)a1; - (void)removeSectionWithIdentifier:(id)a0; - (void)setItems:(id)a0 forSectionIdentifier:(id)a1; - (void)sortItemsWithinSectionAtIdentifier:(id)a0 comparator:(id /* block */)a1; - (void)sortSectionsWithComparator:(id /* block */)a0; @end