@class PGGraphMomentNodeCollection, NSSet, PGGraphFeatureNodeCollection, NSArray; @interface PGGraphMemoryNodeCollection : PGGraphNodeCollection @property (readonly, nonatomic) PGGraphFeatureNodeCollection *featureNodes; @property (readonly, nonatomic) PGGraphMomentNodeCollection *momentNodes; @property (readonly, nonatomic) NSSet *uniqueMemoryIdentifiers; @property (readonly, nonatomic) NSArray *memoryCategorySubcategories; + (Class)nodeClass; + (id)memoryNodeAsCollectionWithUniqueIdentifier:(id)a0 inGraph:(id)a1; + (id)memoryNodesOfCategories:(id)a0 inGraph:(id)a1; + (id)memoryNodesOfCategory:(unsigned long long)a0 inGraph:(id)a1; + (id)memoryNodesWithUniqueIdentifierArray:(id)a0 inGraph:(id)a1; + (id)memoryNodesWithUniqueIdentifiers:(id)a0 inGraph:(id)a1; - (void)enumerateMemoryCategorySubcategoriesUsingBlock:(id /* block */)a0; - (id)subsetWithMemoryCategories:(id)a0; - (id)subsetWithMemoryCategory:(unsigned long long)a0; @end