php/app/common/model/backup/BackupUserChange.php

<?php

namespace app\common\model\backup;

use app\common\model\BaseModel;

class BackupUserChange extends BaseModel
{
    public static function tablePk(): ?string
    {
        return 'id';
    }
    public static function tableName(): string
    {
        return 'backup_user_change';
    }
}