protected function parseTracedReponseInformation()
    {
        // nothing to set if we weren't tracing
        if ( ! isset($this->clientOptions['trace']) || $this->clientOptions['trace'] !== true) {
            return;
        }

        $responseHeaderString = $this->client->__getLastResponseHeaders();

        $this->responseInformation->setStatusCode(
            $this->parseResponseHeaderForStatusCode($responseHeaderString)
        );

        $this->responseInformation->setHeaders(
            $this->parseResponseHeadersAsArray($responseHeaderString)
        );
    }