public function saveTranslations(
            \Illuminate\Database\Eloquent\Model $model, 
            array $translations){
        
        if(empty($translations))
            throw new MissingTranslationsException;
        
        if(empty($this->translation_name))
            throw new MissingTranslationNameException;
        
        return $model->{$this->translation_name}()->saveMany($translations);
    }