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