@class NSString;
@interface PXLayoutMetrics : NSObject <NSCopying>
@property (nonatomic) struct CGSize { double width; double height; } referenceSize;
@property (readonly, nonatomic) NSString *diagnosticDescription;
- (unsigned long long)hash;
- (BOOL)isEqual:(id)a0;
- (id)copyWithZone:(struct _NSZone { } *)a0;
@end