@class NSString; @interface SXJSONDocumentLayout : SXJSONObject <SXDocumentLayout> @property (readonly, nonatomic) long long width; @property (readonly, nonatomic) long long margin; @property (readonly, nonatomic) long long gutter; @property (readonly, nonatomic) unsigned long long columns; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (long long)gutterWithValue:(id)a0 withType:(int)a1; @end