public function addContainer($container, $types = [], $defaultFormat = null, $formats = [])
    {
        if (isset($this->containers[$container])) {
            return $this;
        }

        $this->containers[$container] = new NotificationsBag($container, $types, $defaultFormat, $formats);
        $this->containers[$container]->setNotification($this);

        return $this;
    }