test/app/Http/Models/PrSeoItem.php

<?php

namespace App\Http\Models;

use Illuminate\Database\Eloquent\Model;

class PrSeoItem extends Model
{
    protected $primaryKey = 'id';
    protected $table = 'pr_seo_item';
    protected $casts = [
        'checked_list' => 'array'
    ];
    public $guarded = [];

}