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