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