public function getCustomers(Get\RequestData $requestData = null)
    {
        $request = new Get\Request($requestData);

        $apiResponse = $this->sendRequest($request, Get\ApiResponse::class);

        /** @var Get\Response $response */
        $response = $apiResponse->getResponse();
        foreach ($response->getCustomers() as $customer) {
            if ($customer->getBirthday() instanceof \DateTime) {
                $customer->getBirthday()->setTime(0, 0, 0);
            }
        }

        return $apiResponse;
    }