What does the Intercom.handlePushMessage() do ?

Hi,

I’m following this guide to setup push notification and would like to find out more details on what does the Intercom.handlePushMessage() do in the react-native. 

https://developers.intercom.com/installing-intercom/react-native/push-notifications/

useEffect(() => {
    /**
     * Handle PushNotification
     */
    AppState.addEventListener(
      'change',
      (nextAppState) =>
        nextAppState === 'active' && Intercom.handlePushMessage()
    );
    return () => AppState.removeEventListener('change', () => true);
  }
  , [])

When tapping the push notification on iOS it opens the message but not on Android. What did I miss?

Thanks.