 
     fileprivate func calculateGuideHeight(_ cellItem: StreamCellItem, _ artistInvite: ArtistInvite) {
         guard let guide = cellItem.type.data as? ArtistInvite.Guide else {
-            assignHeight(nil)
+            skipCellItem()
             return
         }
         let text = guide.html

        case .artistInviteGuide:
            calculateGuideHeight(cellItem, artistInvite)
        default:
            assignHeight(nil)
        }
    }


        return totalHeight
    }

    fileprivate func assignGuideHeight(_ cellItem: StreamCellItem, _ webHeight: CGFloat) -> CGFloat {
        return ArtistInviteGuideCell.Size.otherHeights + webHeight
    }
}

extension ArtistInviteCellSizeCalculator: UIWebViewDelegate {
    func webViewDidFinishLoad(_ webView: UIWebView) {
        let textHeight = webView.windowContentSize()?.height
        assignHeight(webHeight: textHeight ?? 0)
    }
}
