public function sendData($data)
{
$request = new LegacyNotifyRequest($this->httpClient, $this->httpRequest);
$request->initialize($this->parameters->all());
$request->setAlipayPublicKey($this->getAlipayPublicKey());
$request->setVerifyNotifyId($this->verifyNotifyId);
$response = $request->send();
$data = $response->getData();
return $this->response = new LegacyCompletePurchaseResponse($this, $data);
}