code: function _getWorkerData(code, lang) {
      let options = {};
      if (typeof lang === 'object') {
          options = lang;
          lang = options.language;
      }
  
      lang = aliases[lang] || lang;
  
      const workerData = {
          id: id++,
          code,
          lang,
          options: _getPrismOptions(options),
          isNode
      };
  
      return workerData;
  }
docs: Gets data to send to webworker
  
  @param  {string} code
  @param  {string} lang
  @return {object}