/**
* Checks if the user is user 1 and grants access if so.
*
* @param \Drupal\Core\Session\AccountInterface $account
* The current user account.
*
* @return \Drupal\Core\Access\AccessResult
* The access result.
*/
public function checkAccess(AccountInterface $account)
{
// The access result is uncacheable because it is just limiting access to
// the migrate UI which is not worth caching.
return AccessResultAllowed::allowedIf((int) $account->id() === 1)->mergeCacheMaxAge(0);
}
