class PrivateTempStoreFactory

class PrivateTempStoreFactory extends CorePrivateTempStoreFactory {
    
    /**
     * Creates a PrivateTempStore.
     *
     * @param string $collection
     *   The collection name to use for this key/value store. This is typically
     *   a shared namespace or module name, e.g. 'views', 'entity', etc.
     *
     * @return \Drupal\user\PrivateTempStore
     *   An instance of the key/value store.
     */
    public function get($collection) {
        // Store the data for this collection in the database.
        $storage = $this->storageFactory
            ->get("user.private_tempstore.{$collection}");
        return new PrivateTempStore($storage, $this->lockBackend, $this->currentUser, $this->requestStack, $this->expire);
    }

}