Blackfire\Player\Guzzle\RequestFactory::createRequestFromUri PHP Метод

    private function createRequestFromUri(Step $step, ValueBag $values)
    {
        $uri = ltrim($this->language->evaluate($step->getUri(), $values->all(true)), '/');
        $headers = $step->getHeaders();
        if (!isset($headers['User-Agent'])) {
            $headers['User-Agent'] = 'Blackfire PHP Player/1.0';
        }
        $body = $this->createBody($values, $step->getFormValues(), $headers, $step->isJson());
        return new Request($step->getMethod(), $this->fixUri($step, $uri), $headers, $body);
    }