title: How to dismiss flutter Get library dialog?
body: <p>I am showing a dialogue with <a href="https://pub.dev/packages/get" rel="nofollow noreferrer">Get</a> library and I want to dismiss automatically after a few seconds with <code>Future</code>. But I found no suitable function for that. So how do I dismiss a <code>get</code> dialogue after showing it? </p>
  
  <p>code: </p>
  
  <pre><code>Get.dialog(Center(
      child: Material(
        color: Colors.blue,
        child: Text('Hello'),
      ),
    )); // how to dismiss? Like Get.Dismiss().
  </code></pre>