• $close: With this API, you can explicitly close a Mobile Activity Space (MAS). Closing a MAS marks the end of its lifecycle and prevents user from further interaction with the MAS. This API is typically invoked after all activities associated with the MAS are completed.

$close().then(
    () => {
      $log('Completed closing MAS');
    },
    (error) => {
      console.error('Error while closing MAS', error);
    },
  );