title: How long do the new Places API session tokens last?
body: <p>I have a website that uses address autocomplete on multiple pages--address book, shipping address, billing address.  With the billing changes releasing next month, we can convert the Autocomplete process to use sessions instead of individual keystrokes. (<a href="https://cloud.google.com/maps-platform/user-guide/pricing-changes/#billing-changes" rel="noreferrer">https://cloud.google.com/maps-platform/user-guide/pricing-changes/#billing-changes</a>)</p>
  
  <ul>
  <li>How long is an AutocompleteSessionToken good for?  The current page?  An hour? Twelve? Permanently, with it counting against the limit each time it shows up in a new month?</li>
  <li>If a session token does expire, and we send that token with a request, what's the result going to be?  If the customer leaves a webpage open for a day and comes back to pick up, and our session data hasn't expired, how do we make sure they don't get autocomplete errors?</li>
  </ul>