SpokenLanguage model is missing english_name support

[trovster]

I am trying to get the english_name from the spoken language for a movie. The SpokenLanguage model only supports the iso and name values. The API has the following;

if (array_key_exists('spoken_languages', $data)) {
    // {
    //     "english_name": "French",
    //     "iso_639_1": "fr",
    //     "name": "Français"
    //   }
    $movie->setSpokenLanguages(
        $this->createGenericCollection($data['spoken_languages'], new SpokenLanguage())
    );
}