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