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