readAttributeDefaultOpenDuration(completion:)
Declaration
func readAttributeDefaultOpenDuration(completion: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeDefaultOpenDuration() async throws -> NSNumberfunc readAttributeDefaultOpenDuration(completion: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)func readAttributeDefaultOpenDuration() async throws -> NSNumber