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