/**
  * @param \Acquia\Network\AcquiaNetworkClient $network
  * @param string $responseFile
  */
 public function addMockResponse(AcquiaNetworkClient $network, $responseFile, $responseCode)
 {
     $mock = new \Guzzle\Plugin\Mock\MockPlugin();
     $response = new \Guzzle\Http\Message\Response($responseCode);
     if (is_string($responseFile)) {
         $response->setBody(file_get_contents($responseFile));
     }
     $mock->addResponse($response);
     $network->addSubscriber($mock);
 }