@class NSSet, PGGraphBusinessNodeCollection; @interface PGGraphBusinessCategoryNodeCollection : PGGraphNodeCollection @property (readonly) NSSet *categories; @property (readonly, nonatomic) PGGraphBusinessNodeCollection *businessNodes; + (Class)nodeClass; + (id)businessCategoryNodesForCategories:(id)a0 inGraph:(id)a1; + (id)businessCategoryNodesForCategory:(id)a0 inGraph:(id)a1; @end