How to Add RTL Tables to a Google Document

As I’m trying to format google doc tables and in reference to this thread I was able to add some formatting to the header row, to the table data and was able to create a doc in a landscape layout.

However, I still didn’t find a solution to:

Making all the table cells to be RTL (it seems like I can only RTL paragraphs)

Here is the code I have so far

function createDoc() {
  var ssUrl = '';
  var sheetName = 'paycall';   // name of sheet to use

   var values = SpreadsheetApp.openByUrl(ssUrl)

  var doc = DocumentApp.create('Sample Document 1');
  var body = doc.getBody();

  var tableStyle = {}; 
   tableStyle(DocumentApp.Attribute.FONT_SIZE) = 10; 

  var rowsData = values;
  body.insertParagraph(0, doc.getName())
  table = body.appendTable(rowsData).setAttributes(tableStyle);