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