title: How to force logout linked account in actions-on-google?
body: <p>In the <a href="https://developers.google.com/actions/identity/google-sign-in" rel="nofollow noreferrer">docs</a>, the sign in functionality looks like this:</p>
  
  <pre><code>app.intent('Default Welcome Intent', conv =&gt; {
    conv.ask(new SignIn('To get your account details'))
  })
  </code></pre>
  
  <p>However, I can't find how to force logout a user who just signed in. Anyone help me please? Thanks.</p>