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use Symfony\Component\HttpFoundation\RedirectResponse;

/**
 * Implements hook_menu_alter().
 */
function custom_homepage_role_menu_alter(&$items) {
  global $user;

  $desired_roles = ['IS', 'MMS', 'AA IS'];

  // Check if the user has any of the desired roles.
  foreach ($desired_roles as $role) {
    if (in_array($role, $user->roles)) {
      // Set the front page path for users with desired roles.
      $items['<front>']['page callback'] = '_custom_homepage_role_redirect';
      break; // Once a matching role is found, exit the loop.
    }
  }
}

/**
 * Custom callback for redirecting users with desired roles.
 */
function _custom_homepage_role_redirect() {
  // Redirect users with desired roles to the custom page.
  $response = new RedirectResponse('/sr-dashboard');
  $response->send();
  return;
}