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