public function makeAllSearchable()
    {
        $this->chunk(100, function (Collection $models) {
            $models = $models->map(function (Searchable $model) {
                $model->setSearchableAs($this->searchableAs());
                $model->setClassMetaData($this->getClassMetadata());

                return $model;
            });

            $this->searchableUsing()->update($models);

            event(new ModelsImported($models));
        });
    }