docs: function ZipExport(jszip, unzipped, async) {
  
      // hold the JSZip for exporting
      this.content = jszip;
  
      // determines if the exported will be compressed
      this.compressed = false;
  
      // determines if the source is an unzipped file
      this.src_unzipped = unzipped ? true : false;
  
      // determines if the exported file will be written asynchronously
      this.save_async = async ? true : false;
  }