new-admin-api/app/common/model/system/merchant/MerchantBrand.php

<?php

namespace app\common\model\system\merchant;

use app\common\model\BaseModel;

class MerchantBrand extends BaseModel{

    public static function tablePk():string{
        return 'id';
    }

    public static function tableName():string{
        return 'merchant_brand';
    }
}