Inheritance: extends UserList
 public function __construct($rule = null, $startDate = null, $endDate = null)
 {
     parent::__construct();
     $this->rule = $rule;
     $this->startDate = $startDate;
     $this->endDate = $endDate;
 }
 public function __construct($rule = null)
 {
     parent::__construct();
     $this->rule = $rule;
 }