title: Flutter: Streambuilder - Closing of streams
body: <p>I'm in the process of building an app which uses streambuilder heavily for getting realtime data from firestore across multiple pages in the app.</p>
  
  <p>As there is no stream close / stream subscription cancellation methods, is it safe to assume that streambuilder will auto detach listening to Firestore document changes when the widget is disposed by framework? Are there any caveats to be aware of.</p>
  
  <p>Thanks.</p>