text: function xmlwriter_set_indent_string(xmlwriter, indentString) {
    // http://kevin.vanzonneveld.net
    // +   original by: Brett Zamir (http://brett-zamir.me)
    // *     example 1: var xmlwriter = xmlwriter_open_memory();
    // *     example 1: xmlwriter_set_indent_string(xmlwriter, '    ');
    // *     returns 1: true
  
    return xmlwriter.setIndentString(indentString);
  }
  