Extended ClassNSArrayNot available in Objective-C.Not available in Python.Declarationextension NSArrayTopicsInstance MethodsallCombinationsKeepOrder(_:)allSatisfy(_:)containsWhere(_:)countOfObjects(matching:)countOfObjects(matching:)countOfObjects(options:matching:)countOfObjects(options:matching:)deepMutableCopy()distinctValue(forKey:)elementsEqual(_:by:)enumerateObjectsInParallel(_:)filteredArray(_:)isSortedComparator(_:)makeObjectsPerformSelector(inParallel:with:)sorted()write(asOldstylePropertyList:)