How to use presenter

There are not many example on how to use a presenter.

I am getting error:

> Call to undefined method App\Repositories\UserRepositoryEloquent::getName()

In UserRepositoryEloquent I add method:

```php
public function presenter()
{
return "App\\Presenters\\UserPresenter";
}
```

And UserPresenter have method getName():

```php
public function getName()
{
return $this->user->name;
}
```

What am I missing?

I suppose that the Presenter should be used in Transformer, but they are not working.