presenter.php

//Model
<?php
namespace App;

use Illuminate\Database\Eloquent\Model;
use Codecasts\Presenter\Presentable;

class Tblpreco extends Model
{
    use Presentable;
    
    protected $presenter = \App\Presenter\TblprecoPresenter::class;
    
    public $fillable = ['emissao','hsemissao','users_id','categoria','valor','vigencia'];
    
    protected $dates = ['vigencia','emissao'];
    
    protected $table = 'tblpreco';
    
    public $timestamps  = false;   
}

//PRESENTER

namespace App\Presenter\TblprecoPresenter;
use Codecasts\Presenter\Presenter;

class TblprecoPresenter extends Presenter
{
    
}

//CONTROLLER 
dd($tblpreco->present()->vigencia);