Xpressengine\User\UserHandler::users PHP Method

    public function users()
    {
        return $this->users;
    }

 /**
  * searchMember
  *
  * @param null $keyword
  *
  * @return \Xpressengine\Presenter\RendererInterface
  */
 public function search($keyword = null)
 {
     /** @var UserRepository $users */
     $users = $this->handler->users();
     if ($keyword === null) {
         return XePresenter::makeApi([]);
     }
     $matchedMemberList = $users->query()->where('displayName', 'like', '%' . $keyword . '%')->paginate(null, ['id', 'displayName', 'email'])->items();
     return XePresenter::makeApi($matchedMemberList);
 }