title: Google OAuth2 - how to change expires_in or token_expiry value?
body: <p>I'm trying to enlarge value of 'expires_in' (from credential object, now it is 3600 seconds), because I want to allow user to use my app for a long time. I'm using refreshing token, but it refreshed only if user uses app quite often.</p>
  
  <p>If you know how to change token_expiry date - I'm interested of that solution too.</p>
  
  <p>Thank you for any tips.</p>