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