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