protected function setBotExtrasRequest(): self
    {
        $request_extras = [
            // None at the moment...
        ];
        // For request extras, just pass the single param value to the Request method.
        foreach ($request_extras as $param_key => $method) {
            $param = $this->params->getBotParam($param_key);
            if (null !== $param) {
                Request::$method($param);
            }
        }

        // Special cases.
        $limiter_enabled = $this->params->getBotParam('limiter.enabled');
        if ($limiter_enabled !== null) {
            $limiter_options = $this->params->getBotParam('limiter.options', []);
            Request::setLimiter($limiter_enabled, $limiter_options);
        }

        return $this;
    }