mint/api-v13/app/Models/PageNumber.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class PageNumber extends Model
{
    use HasFactory;

    protected $fillable = ['type', 'volume', 'page',
        'book', 'paragraph', 'wid', 'pcd_book_id'];
}