text: (function () {
      'use strict';
  
      admin.pages.options = function () {
  
          $(document).ready(function(){
              $('#allowed_file_types')
              .tagify()
              .on('add', function(e, tagName){
                  console.log('added', tagName)
              });
  
              var validator = $("#options").validate({
                  errorPlacement: function(error, element) {
                      error.appendTo(element.parent('div'));
                  },
              });
          });
      };
  })();