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