protected function fireEvents()
    {
        array_map(function (VkRequest $request, $response) {
            $status = isset($response['error_code']) ? VkRequest::STATUS_FAIL : VkRequest::STATUS_SUCCESS;
            $event = sprintf(VkRequest::EVENT_FORMAT, $status, $request->method, $request->tag);
            event($event, [$request, $response]);
        }, $this->requests->all(), $this->responses);
    }