code: function download(url) {
    var req = request.get(url);
  
    // When we receive the response
    req.on('response', (res) => {
  
      // Parse out the length of the incoming bundle
      var contentLength = parseInt(res.headers['content-length'], 10);
  
      // Create a new progress bar
      var bar = new Progress('     [:bar] :percent :etas remaining', {
        clear: true,
        complete: '=',
        incomplete: ' ',
        width: 20,
        total: contentLength
      });
  
      // When we get incoming data, update the progress bar
      res.on('data', (chunk) => {
        bar.tick(chunk.length);
      });
    });
  
    return req;
  }
docs: /* istanbul ignore next