🚀 go-pugleaf

I ave a JavaScript that builds a 6 column page but I need to add variable text to it depending on how is using it. How do I pass a variable for the text to the script. My script looks like this so far.

var myDocument = app.documents.add();
with(myDocument.documentPreferences){
   pageHeight = "297mm";
   pageWidth = "210mm";
   pageOrientation = PageOrientation.portrait;
   facingPages = false;
}
with(myDocument.textDefaults){
   kerningMethod = "Metrics";
   appliedFont = "Arial";
}
with(myDocument.pages.item(0)){
   with(marginPreferences){
      columnCount = 6;
      columnGutter = "4.233mm";
      bottom = "12.7mm";
      left = "12.7mm";
      right = "12.7mm";
      top = "12.7mm";
   }
   with(textFrames.add()){
      geometricBounds = ["12.7mm", "12.7mm", "284.3mm", "197.3mm"];
      contents = "Text goes in here";
      with(textFramePreferences){
         textColumnCount = 6;
      }
   }
}
with(myDocument.viewPreferences){
      HorizontalMeasurementUnits = 205418890;
      VerticalMeasurementUnits = 205418890;
}