src/Notification/NotificationSyncer.php
public function delete(BlueprintInterface $blueprint)
    {
        Notification::where($this->getAttributes($blueprint))->update(['is_deleted' => true]);
    }
public function delete(BlueprintInterface $blueprint)
    {
        Notification::where($this->getAttributes($blueprint))->update(['is_deleted' => true]);
    }
public function delete ( BlueprintInterface $ blueprint ) { Notification :: where ( $ this -> getAttributes ( $ blueprint ) ) -> update ( [ 'is_deleted' => true ] ) ; }
Delete a notification for all users.

@param \Flarum\Notification\Blueprint\BlueprintInterface $blueprint
@return void
Delete a notification for all users .