外部から受信した文章のセルの高さ

表示する文字列は決まっている場合のセルの高さの自動調節はできるようになったのですが（https://teratail.com/questions/74132）外部から受信した文章の場合セルの高さの調節がうまくいきません。

コードはこんな感じです

import UIKit
import TwitterKit

class Timeline: UITableViewController {
    @IBOutlet var TimelineTableView: UITableView!
    var IconImage = [String]()
    var Name = [String]()
    var ScreenName = [String]()
    var TweetContent = [String]()

    override func viewDidLoad() {
        super.viewDidLoad()
        self.TimelineTableView.estimatedRowHeight = 100.0
        self.TimelineTableView.rowHeight = UITableViewAutomaticDimension
        self.refreshControl = UIRefreshControl()
        self.refreshControl?.addTarget(self, action: #selector(refresh), for: UIControlEvents.valueChanged)
        refresh()
    }
    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return Name.count
    }
    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "TweetCell") as! CustomTableViewCell
        cell.setCell(IconImage: IconImage[indexPath.row], Name: self.Name[indexPath.row], ScreenName: self.ScreenName[indexPath.row], TweetContent: self.TweetContent[indexPath.row])
        return cell
    }
    func refresh() {
        let endpoint = "https://api.twitter.com/1.1/statuses/home_timeline.json"
        let client = TWTRAPIClient.init(userID: "11463209")
        var clientError : NSError?
        let params = ["count": "1"]
        let request = client.urlRequest(withMethod: "GET", url: endpoint, parameters: params, error: &clientError)
        client.sendTwitterRequest(request) {
            (response, data, connectionError) -> Void in
            if connectionError != nil {
                print("エラー: \(String(describing: connectionError))")
            } else {
                let json = try! JSONSerialization.jsonObject(with: data!, options: .allowFragments) as! [[String:Any]]
                for object in json {
                    if let user = object["user"] as? [String:Any] {
                        let profile_image_url_https = user["profile_image_url_https"] ?? "(empty)"
                        self.IconImage += ["\(profile_image_url_https)"]
                        let names = user["name"] ?? "(empty)"
                        self.Name += ["\(names)"]
                        let screen_name = user["screen_name"] ?? "(empty)"
                        self.ScreenName += ["\(screen_name)"]
                    } else {
                        print("does not exist 'user'")
                    }
                    let text = object["text"] ?? "(empty)"
                    self.TweetContent += ["\(text)"]

                }
                self.TimelineTableView.reloadData();
            }
        }
        self.tableView.tableFooterView = UIView()
        self.refreshControl?.endRefreshing()
    }
}

import UIKit

class CustomTableViewCell: UITableViewCell {

    @IBOutlet weak var IconImageView: UIImageView!
    @IBOutlet weak var NameLabel: UILabel!
    @IBOutlet weak var ScreenNameLabel: UILabel!
    @IBOutlet weak var TweetContentLabel: UILabel!

    override func setSelected(_ selected: Bool, animated: Bool) {
        super.setSelected(selected, animated: animated)
    }

    func setCell(IconImage: String, Name: String, ScreenName: String, TweetContent: String) {
        NameLabel.text = Name
        ScreenNameLabel.text = ScreenName
        TweetContentLabel.text = TweetContent
        let url = NSURL(string: IconImage)
        let req = NSURLRequest(url:url! as URL)
        NSURLConnection.sendAsynchronousRequest(req as URLRequest, queue:OperationQueue.main){(res, data, err) in
            let image = UIImage(data:data!)
            self.IconImageView.image = image
        }
    }
}

表示するためのLabelのLinesも0に設定しました
外部から受信した文章をセルにセットし、セルの高さを自動調節するにはどのようにすれば良いのでしょうか？