KT-MyPage/app/Http/Controllers/Web/Auth/LoginParam.php

<?php

namespace App\Http\Controllers\Web\Auth;

use App\Http\Controllers\Web\BaseParam;

/**
 * @property string $email
 * @property string $password
 * @property int $customerCode
 */
class LoginParam extends BaseParam
{
    public function rules(): array
    {
        return [
            'email' => $this->str(),
            'password' => $this->str(),
            'customer_code' => $this->numeric(),
        ];
    }
}