title: Make downloads dock icon bounce programmatically
body: <p>How can I make the dock Downloads icon bounce programmatically? <br>Notice that I don't want my app icon to bounce, but only Downloads' icon.</p>
  
  <p>In particular, I'm downloading a file from my app to Downloads folder. No problem with this, but I want the Downloads icon to bounce when the download is finished (as happen when Safari completes a download).</p>