         }
     }
 
-    fileprivate func isContentBiggerThanContainerHeight() -> Bool {
+    private func isContentBiggerThanContainerHeight() -> Bool {
         if let contentHeight = self.collectionView?.contentSize.height {
             if let collectionViewHeight = self.collectionView?.frame.height {
                 if contentHeight < collectionViewHeight {

        }
    }

    fileprivate func blockMessageSending(reason: String) {
        textInputbar.textView.placeholder = reason
        textInputbar.backgroundColor = .white
        textInputbar.isUserInteractionEnabled = false

        return ChatCollectionViewFlowLayout()
    }

    private func registerCells() {
        let collectionViewCells: [NibCellIndentifier] = [
            (nibName: "ChatLoaderCell", cellIdentifier: ChatLoaderCell.identifier),
            (nibName: "ChatMessageCell", cellIdentifier: ChatMessageCell.identifier),
