docs: function browserifyTransform(file) {
      var chunks = [];
  
      var write = function(buffer) {
        chunks.push(buffer);
      };
  
      var end = function() {
        var content = Buffer.concat(chunks).toString('utf8');
        // convention fileName == key for shim options
        var fileName = file.match(/([^\/]+)(?=\.\w+$)/)[0];
        this.queue(commonjsify(content, options[fileName]));
        this.queue(null);
      };
  
      return through(write, end);
    }