code: function toCssModule(styles) {
      var done = false;
      var res;
  
      new modules().load(styles, prefix + uni()).then(function(next) {
        done = true;
        res = next;
      });
  
      deasync.loopWhile(function() {
        return !done;
      });
  
      return res;
    }
docs: sync create css module