@class NSArray, PXPhotosLayoutSpec, PXPhotosHeaderCustomizationModel; @interface PXPhotosLayoutSpecManager : PXFeatureSpecManager @property (readonly, nonatomic) PXPhotosLayoutSpec *spec; @property (retain, nonatomic) NSArray *availableThumbnailSizes; @property (nonatomic) long long gridStyle; @property (readonly, nonatomic) BOOL sectionHeadersEnabled; @property (readonly, nonatomic) PXPhotosHeaderCustomizationModel *headerCustomizationModel; - (id)initWithExtendedTraitCollection:(id)a0 options:(unsigned long long)a1; - (id)initWithExtendedTraitCollection:(id)a0 options:(unsigned long long)a1 enableSectionHeaders:(BOOL)a2; - (BOOL)shouldUpdateSpecForExtendedTraitCollection:(id)a0 change:(unsigned long long)a1; - (void).cxx_destruct; - (Class)specClass; - (id)createSpec; @end