@class NSString; @interface SXFirstViewportComponentInsertionCondition : NSObject <SXComponentInsertionCondition> @property (nonatomic) BOOL allowFirstViewportException; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (id)init; - (id)initWithAllowFirstViewportException:(BOOL)a0; - (BOOL)validateMarker:(id)a0 componentTraits:(unsigned long long)a1 layoutProvider:(id)a2; @end