@class PXWidgetSpec, PXWidgetBarSpec; @interface PXWidgetCompositionSpec : NSObject @property (readonly, nonatomic) PXWidgetBarSpec *_defaultHeaderSpec; @property (readonly, nonatomic) PXWidgetBarSpec *_headerSpecForFlushedContent; @property (readonly, nonatomic) PXWidgetSpec *widgetSpec; @property (readonly, nonatomic) long long maximumNumberOfColumns; @property (readonly, nonatomic) PXWidgetBarSpec *footerSpec; @property (readonly, nonatomic) long long disclosureLocation; - (id)init; - (void).cxx_destruct; - (id)headerSpecForWidgetContentLayoutStyle:(long long)a0; - (id)initWithExtendedTraitCollection:(id)a0 widgetSpec:(id)a1; @end