function getTwitterFollowers() {

  var api = "https://api.twitter.com/1.1/followers/list.json?count=200";

  var oAuth = UrlFetchApp.addOAuthService("labnol");

  oAuth.setAccessTokenUrl("https://api.twitter.com/oauth/access_token");
  oAuth.setRequestTokenUrl("https://api.twitter.com/oauth/request_token");
  oAuth.setAuthorizationUrl("https://api.twitter.com/oauth/authorize");
  oAuth.setConsumerKey("CONSUMER_KEY");
  oAuth.setConsumerSecret("CONSUMER_SECRET");

  var result = UrlFetchApp.fetch ( api, {
    "method": "get",
    "oAuthServiceName":"labnol",
    "oAuthUseToken":"always"
  } );

  if (result.getResponseCode() == 200) {

    if ( var json = JSON.parse(result.getContentText()) ) {

      var ss = SpreadsheetApp.getActive().getActiveSheet();

      for (var u in json.users) {

        var user = json.users[u];

        ss.appendRow([
          '=image("' + user.profile_image_url + '", 4, 50, 50)' : "",
          '=hyperlink("http://twitter.com/' + user.screen_name + '","' + user.name + '")',
          user.status ? user.status.created_at : "never",
          user.created_at,
          user.statuses_count,
          user.followers_count,
          user.friends_count,
          user.url.replace(/https?:\/\/(www.)?/, "").replace(/\/$/, "") : "",
          user.location,
          user.description.replace(/\n|\r/g, " ")
        ]);

      }
    }
  }
}