     
     fileprivate func prefetchPresentor(of message: CKMessageData, at indexPath: IndexPath) {
         
-        guard pretchedPresentors[indexPath] == nil else {
+        guard prefetchedPresentors[indexPath] == nil else {
             return
         }
         

    fileprivate func debuggingPresentors(place: StaticString = #function) {
        print("===> \(place) usingPresentors: \(usingPresentors)")
        print("===> \(place) unusedPresentors: \(unusedPresentors)")
        print("===> \(place) pretchedPresentors: \(pretchedPresentors)")
        print("")
        print("")
    }

        if var presentor = unusedPresentors[MessageType]?.first {
            unusedPresentors[MessageType]?.removeFirst()
            presentor.message = message
            prefetchedPresentors[indexPath] = presentor
        } else {
            var presentor = PresentorType.presentor()
            presentor.message = message
            prefetchedPresentors[indexPath] = presentor
        }
        
    }
